Ford Fiesta: Module Communications Network / Communications Network. Diagnosis and Testing

Ford Fiesta 2014 - 2019 Service Manual / Electrical Distribution / Module Communications Network / Communications Network. Diagnosis and Testing

Symptom Chart(s)

Symptom Chart: Communication Network

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Symptom Chart

Condition	Possible Sources	Actions
The vehicle does not start with the diagnostic scan tool connected to the DLC and/or multiple malfunction indicators are only on when the scan tool is connected to the DLC	Refer to the Pinpoint Test	GO to Pinpoint Test S
The PCM does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test A
The ABS module does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test B
The RCM does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test C
The OCSM does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test D
The IPC does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test E
The BCM does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test F
The HVAC module does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test G
The ACM does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test H
The APIM does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test I
The FCDIM does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test J
The FCIM does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test K
The GPSM does not respond to the diagnostic scan tool (except vehicles equipped with touchscreen without GPSM )	Refer to the Pinpoint Test	GO to Pinpoint Test L
The TCM does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test M
The RFA module does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test N
The PSCM does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	GO to Pinpoint Test O
No HS-CAN communication, all modules are not responding	Refer to the Pinpoint Test	GO to Pinpoint Test P
No MS-CAN communication, all modules are not responding	Refer to the Pinpoint Test	GO to Pinpoint Test Q
No I-CAN communication, all modules are not responding	Refer to the Pinpoint Test	GO to Pinpoint Test R
No power to the DLC	Refer to the Pinpoint Test	GO to Pinpoint Test S

Pinpoint Tests

The PCM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The PCM communicates with the diagnostic scan tool through the HS-CAN . An IDS session cannot be established if the PCM communication fails when attempting to identify the vehicle.

Possible Sources

Fuse
Wiring, terminals and connectors
PCM

PINPOINT TEST A: THE PCM (POWERTRAIN CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

A1 VERIFY WHETHER OTHER HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) MODULES PASS THE NETWORK TEST

Using a diagnostic scan tool, perform the network test.

Is the text "pass" or a DTC listed next to any of the following modules (if equipped): ABS module, APIM , IPC , PSCM , RCM , OCSM , RFA module, and TCM ?

Yes

If "pass" or a DTC was listed next to the PCM , a network fault is not currently present.
If "pass" or a DTC was listed next to one or more modules other than the PCM , GO to A2

No	No modules are currently communicating on the HS-CAN . GO to Pinpoint Test P

A2 CHECK PCM (POWERTRAIN CONTROL MODULE) VREF VOLTAGE

Check the PCM VREF voltage.

Has the VREF test been performed?

Yes

GO to A3

No	Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual.

A3 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) TERMINATION RESISTANCE

Ignition OFF.

Disconnect negative battery cable.

Disconnect the diagnostic scan tool cable from the DLC .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 C251-14

Is the resistance between 54 and 66 ohms?

Yes

GO to A4

No	CONNECT the negative battery cable. GO to A5

A4 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE PCM (POWERTRAIN CONTROL MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Disconnect PCM connector.

Measure:
Click to display connectors
1.0L GTDI EcoBoost

Positive Lead Measurement / Action Negative Lead

C1381B-69 C251-6

C1381B-68 C251-14

Click to display connectors
1.6L GTDI EcoBoost

Positive Lead Measurement / Action Negative Lead

C1915B-69 C251-6

C1915B-68 C251-14

Click to display connectors
1.6L TiVCT

Positive Lead Measurement / Action Negative Lead

C175B-20 C251-6

C175B-19 C251-14

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to A5

No	REPAIR the circuit in question. CONNECT the negative battery cable.

A5 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the PCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the PCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (PCM).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The ABS Module Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The ABS module communicates with the diagnostic scan tool through the HS-CAN .

Possible Sources

Fuse
Wiring, terminals and connectors
ABS

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuse 22 (7.5A), and BJB fuses 1 (40A) and 35 (40A) are OK.

PINPOINT TEST B: THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

B1 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect ABS module C135.

Ignition ON.

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C135-1		Ground
C135-30		Ground
C135-35		Ground

Are the voltages greater than 11 volts?

Yes

GO to B2

No	VERIFY the CJB fuse 22 (7.5A), and BJB fuses 1 (40A) and 35 (40A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

B2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C135-14 Ground

Is the resistance less than 3 ohms?

Yes

GO to B3

No	REPAIR the circuit. CONNECT the negative battery cable.

B3 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C135-42 C251-6

C135-43 C251-14

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to B4

No	REPAIR the circuit in question. CONNECT the negative battery cable.

B4 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the ABS module connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the ABS module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new ABS module.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The RCM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The RCM communicates with the diagnostic scan tool through the HS-CAN .

Possible Sources

Fuse
Wiring, terminals and connectors
RCM

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuse 20 (10A) is OK.

PINPOINT TEST C: THE RCM (RESTRAINTS CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

WARNING: Never probe the electrical connectors on air bag, Safety Canopy® or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

WARNING: Never disassemble or tamper with seat belt deployable components, including pretensioners, load limiters and inflators. Never back probe deployable device electrical connectors. Tampering or back probing may cause an accidental deployment and result in personal injury or death.

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.

C1 CHECK THE RCM (RESTRAINTS CONTROL MODULE) CONNECTION

Ignition OFF.

Depower the SRS .
REFER to: Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental Restraint System, General Procedures).

Disconnect: RCM C310A and C310B.

Are RCM C310A pin 19 and C310B pins 47 and 48 OK?

Yes

GO to C2

No	INSTALL a new wiring harness. REPOWER the SRS . REFER to: Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental Restraint System, General Procedures).

C2 CHECK THE RCM (RESTRAINTS CONTROL MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Repower the SRS .
REFER to: Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental Restraint System, General Procedures).

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C310A-19 Ground

Is the voltage greater than 11 volts?

Yes

GO to C3

No	VERIFY the CJB fuse 20 (10A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

C3 CHECK THE RCM (RESTRAINTS CONTROL MODULE) CASE GROUND

Ignition OFF.

Disconnect negative battery cable.

Measure the resistance between the RCM case and a good chassis ground.

Is the resistance less than 3 ohms?

Yes

GO to C4

No	REPAIR the RCM case ground as necessary. CONNECT the negative battery cable.

C4 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE RCM (RESTRAINTS CONTROL MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Disconnect RCM C310B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C310B-48 C251-6

C310B-47 C251-14

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to C5

No	REPAIR the circuit in question. CONNECT the negative battery cable.

C5 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the RCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the RCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The OCSM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The OCSM communicates with the diagnostic scan tool through the HS-CAN .

Possible Sources

Fuse
Wiring, terminals and connectors
OCSM

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuse 4 (7.5A) is OK.

PINPOINT TEST D: THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.

D1 CHECK THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition ON.

Disconnect OCSM C3159.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3159-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to D2

No	VERIFY the CJB fuse 4 (7.5A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

D2 CHECK THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3159-4 Ground

Is the resistance less than 3 ohms?

Yes

GO to D3

No	REPAIR the circuit. CONNECT negative battery cable.

D3 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3159-2 C251-6

C3159-3 C251-14

Are the resistances less than 3 ohms?

Yes

CONNECT negative battery cable. GO to D4

No	REPAIR the circuit in question. CONNECT negative battery cable.

D4 CHECK FOR CORRECT OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the OCSM connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the OCSM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The IPC Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The IPC communicates with the diagnostic scan tool through the HS-CAN , MS-CAN and Infotainment Controller Area Network (I-CAN). The IPC acts as a gateway for communication between the Infotainment Controller Area Network (I-CAN) modules and the DLC .

Possible Sources

Fuse
Wiring, terminals and connectors
IPC

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuses 3 (7.5A), 19 (7.5A) and 21 (7.5A) are OK.

PINPOINT TEST E: THE IPC (INSTRUMENT PANEL CLUSTER) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

E1 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) TERMINATION RESISTANCE

Ignition OFF.

Disconnect negative battery cable.

Disconnect the diagnostic scan tool cable from the DLC .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 C251-14

Is the resistance between 54 and 66 ohms?

Yes

GO to E3

GO to E2

E2 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE IPC (INSTRUMENT PANEL CLUSTER) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Disconnect IPC C220B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C220B-5 C251-6

C220B-6 C251-14

Are the resistances less than 3 ohms?

Yes

CONNECT negative battery cable. GO to E9

No	REPAIR the circuit in question. CONNECT negative battery cable.

E3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) TERMINATION RESISTANCE

Connect IPC C220B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 C251-11

Is the resistance between 54 and 66 ohms?

Yes

GO to E5

GO to E4

E4 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE IPC (INSTRUMENT PANEL CLUSTER) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Disconnect IPC C220B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C220B-1 C251-3

C220B-2 C251-11

Are the resistances less than 3 ohms?

Yes

CONNECT negative battery cable. GO to E9

No	REPAIR the circuit in question. CONNECT negative battery cable.

E5 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) TERMINATION RESISTANCE

Disconnect FCDIM C2123.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2123-4 C2123-5

Is the resistance between 54 and 66 ohms?

Yes

GO to E7

GO to E6

E6 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) CIRCUITS BETWEEN THE FCDIM (FRONT CONTROL/DISPLAY INTERFACE MODULE) AND THE IPC (INSTRUMENT PANEL CLUSTER) FOR AN OPEN

Disconnect IPC C220B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2123-4 C220B-10

C2123-5 C220B-9

Are the resistances less than 3 ohms?

Yes

GO to E7

No	REPAIR the circuit in question. CONNECT the negative battery cable.

E7 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Connect FCDIM C2123

Disconnect IPC C220A .

Connect negative battery cable.

Ignition ON.

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C220A-4		Ground
C220A-15		Ground
C220A-32		Ground

Are the voltages greater than 11 volts?

Yes

GO to E8

No	VERIFY the CJB fuses 3 (7.5A), 19 (7.5A) and 21 (7.5A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

E8 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C220A-6 Ground

Is the resistance less than 3 ohms?

Yes

CONNECT negative battery cable. GO to E9

No	REPAIR the circuit. CONNECT negative battery cable.

E9 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION

Ignition OFF.

Disconnect and inspect the IPC connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the IPC connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (IPC).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The BCM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The BCM communicates with the diagnostic scan tool through the MS-CAN .

Possible Sources

Fuse
Wiring, terminals and connectors
BCM

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuse 21 (7.5A) is OK.

PINPOINT TEST F: THE BCM (BODY CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

F1 CHECK THE MEDIUM SPEED CONTROLLER AREA NETWORK (MS-CAN) TERMINATION RESISTANCE

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 C251-11

Is the resistance between 54 and 66 ohms?

Yes

GO to F3

GO to F2

F2 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE BCM (BODY CONTROL MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Disconnect BCM C2280E.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280E-6 C251-3

C2280E-7 C251-11

Are the resistances less than 3 ohms?

Yes

CONNECT negative battery cable. GO to F5

No	REPAIR the circuit in question. CONNECT negative battery cable.

F3 CHECK THE BCM (BODY CONTROL MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect BCM C2280B.

Connect negative battery cable.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280B-6 Ground

Is the voltage greater than 11 volts?

Yes

GO to F4

No	VERIFY the CJB fuse 21 (7.5A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

F4 CHECK THE BCM (BODY CONTROL MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect BCM C2280A.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280A-16 Ground

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280B-7 Ground

C2280B-16 Ground

Are the resistances less than 3 ohms?

Yes

CONNECT negative battery cable. GO to F5

No	REPAIR the circuit. CONNECT negative battery cable.

F5 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the BCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the BCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The HVAC Module Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The HVAC communicates with the diagnostic scan tool through the MS-CAN .

Possible Sources

Fuse
Wiring, terminals and connectors
HVAC module

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuse 12 (7.5A) is OK.

PINPOINT TEST G: THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

G1 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Disconnect HVAC module C228A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C228A-10 Ground

Is the voltage greater than 11 volts?

Yes

GO to G2

No	VERIFY the CJB fuse 12 (7.5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

G2 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C228A-3 Ground

Is the resistance less than 3 ohms?

Yes

GO to G3

No	REPAIR the circuit. CONNECT the negative battery cable.

G3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C228B-4 C251-3

C228B-5 C251-11

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to G4

No	REPAIR the circuit in question. CONNECT the negative battery cable.

G4 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the HVAC module connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the HVAC module connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new HVAC module.
REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module (412-00 Climate Control System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The ACM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The ACM communicates on the Infotainment Controller Area Network (I-CAN), but communicates with the diagnostic scan tool through a gateway module to the HS-CAN . The IPC is the gateway module between the networks.

Possible Sources

Fuse
Wiring, terminals and connectors
ACM

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuse 10 (15A) is OK.

PINPOINT TEST H: THE ACM (AUDIO FRONT CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

H1 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) TERMINATION RESISTANCE

Disconnect ACM C240A.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-14 C240A-15

Is the resistance between 108 and 132 ohms?

Yes

GO to H3

GO to H2

H2 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) CIRCUITS BETWEEN THE ACM (AUDIO FRONT CONTROL MODULE) AND THE IPC (INSTRUMENT PANEL CLUSTER)

Disconnect IPC C220B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-14 C220B-10

C240A-15 C220B-9

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to H5

No	REPAIR the circuit in question. CONNECT the negative battery cable.

H3 CHECK THE ACM (AUDIO FRONT CONTROL MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Connect negative battery cable.

Connect IPC C220B.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to H4

No	VERIFY the CJB fuse 10 (15A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

H4 CHECK THE ACM (AUDIO FRONT CONTROL MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-13 Ground

Is the resistance less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to H5

No	REPAIR the circuit. CONNECT the negative battery cable.

H5 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the ACM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The APIM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The APIM communicates on the HS-CAN , the MS-CAN (touchscreen) and the Infotainment Controller Area Network (I-CAN). The module communicates with the diagnostic scan tool on the Infotainment Controller Area Network (I-CAN) through a gateway module to the HS-CAN . The IPC is the gateway module between the networks.

Possible Sources

Fuse
Wiring, terminals and connectors
APIM

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuse 10 (15A) is OK.

PINPOINT TEST I: THE APIM (SYNC MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

I1 CHECK THE APIM (SYNC MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect APIM C2383.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to I2

No	VERIFY the CJB fuse 10 (15A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

I2 CHECK THE APIM (SYNC MODULE) GROUND CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors
With Touchscreen

Positive Lead Measurement / Action Negative Lead

C2383-37 Ground

Click to display connectors
Without Touchscreen

Positive Lead Measurement / Action Negative Lead

C2383-37 Ground

C2383-38 Ground

Are the resistances less than 3 ohms?

Yes

GO to I3

No	REPAIR the circuit in question.

I3 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE APIM (SYNC MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383-53 C251-6

C2383-54 C251-14

Are the resistances less than 3 ohms?

Yes

GO to I4

No	REPAIR the circuit in question. CONNECT the negative battery cable.

I4 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) CIRCUITS BETWEEN THE APIM (SYNC MODULE) AND THE IPC (INSTRUMENT PANEL CLUSTER) FOR AN OPEN

Disconnect IPC C220B.

Measure:
Click to display connectors
With Touchscreen

Positive Lead Measurement / Action Negative Lead

C2383-19 C220B-10

C2383-20 C220B-9

Click to display connectors
Without Touchscreen

Positive Lead Measurement / Action Negative Lead

C2383-16 C220B-10

C2383-17 C220B-9

Are the resistances less than 3 ohms?

Yes

If equipped with touchscreen, GO to I5
If not equipped with touchscreen, CONNECT the negative battery cable and GO to I6

No	REPAIR the circuit in question. CONNECT the negative battery cable.

I5 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE APIM (SYNC MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383-16 C251-3

C2383-17 C251-11

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to I6

No	REPAIR the circuit in question. CONNECT the negative battery cable.

I6 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Connect IPC C220B.

Disconnect and inspect the APIM connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the APIM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

COMPLETE THE FDRS GUIDED ROUTINE

NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The FCDIM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The FCDIM communicates on the Infotainment Controller Area Network (I-CAN), but communicates with the diagnostic scan tool through a gateway module to the HS-CAN . The IPC is the gateway module between the networks.

Possible Sources

Fuse
Wiring, terminals and connectors
FCDIM

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuse 7 (7.5A) is OK.

PINPOINT TEST J: THE FCDIM (FRONT CONTROL/DISPLAY INTERFACE MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

J1 CHECK THE FCDIM (FRONT CONTROL/DISPLAY INTERFACE MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect FCDIM C2123.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2123-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to J2

No	VERIFY the CJB fuse 7 (7.5A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

J2 CHECK THE FCDIM (FRONT CONTROL/DISPLAY INTERFACE MODULE) GROUND CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2123-9 Ground

Is the resistance less than 3 ohms?

Yes

GO to J3

No	REPAIR the circuit in question. CONNECT the negative battery cable.

J3 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) CIRCUITS BETWEEN THE FCDIM (FRONT CONTROL/DISPLAY INTERFACE MODULE) AND THE IPC (INSTRUMENT PANEL CLUSTER) FOR AN OPEN

Disconnect IPC C220B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2123-4 C220B-10

C2123-5 C220B-9

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to J4

No	REPAIR the circuit in question. CONNECT the negative battery cable.

J4 CHECK FOR CORRECT FCDIM (FRONT CONTROL/DISPLAY INTERFACE MODULE) OPERATION

Ignition OFF.

Connect IPC C220B.

Disconnect and inspect the FCDIM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the FCDIM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The FCIM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The FCIM communicates on the Infotainment Controller Area Network (I-CAN), but communicates with the diagnostic scan tool through a gateway module to the HS-CAN . The IPC is the gateway module between the networks.

Possible Sources

Fuse
Wiring, terminals and connectors
FCIM

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuse 7 (7.5A) is OK.

PINPOINT TEST K: THE FCIM (FRONT CONTROLS INTERFACE MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

K1 CHECK THE FCIM (FRONT CONTROLS INTERFACE MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect FCIM C2402.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2402-8 Ground

Is the voltage greater than 11 volts?

Yes

GO to K2

No	VERIFY the CJB fuse 7 (7.5A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

K2 CHECK THE FCIM (FRONT CONTROLS INTERFACE MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2402-5 Ground

Is the resistance less than 3 ohms?

Yes

GO to K3

No	REPAIR the circuit in question. CONNECT the negative battery cable.

K3 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) CIRCUITS BETWEEN THE FCIM (FRONT CONTROLS INTERFACE MODULE) AND THE IPC (INSTRUMENT PANEL CLUSTER) FOR AN OPEN

Disconnect IPC C220B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2402-7 C220B-10

C2402-4 C220B-9

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to K4

No	REPAIR the circuit in question. CONNECT the negative battery cable.

K4 CHECK FOR CORRECT FCIM (FRONT CONTROLS INTERFACE MODULE) OPERATION

Ignition OFF.

Connect IPC C220B.

Disconnect and inspect the FCIM connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the FCIM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The GPSM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

The GPSM communicates with the scan tool through the MS-CAN . This test does not apply to vehicles equipped with touchscreen without a GPSM .

Possible Sources

Fuse
Wiring, terminals and connectors

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuse 7 (7.5A) is OK.

PINPOINT TEST L: THE GPSM (GLOBAL POSITIONING SYSTEM MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

L1 CHECK THE GPSM (GLOBAL POSITIONING SYSTEM MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Disconnect GPSM C9050.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C9050-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to L2

No	VERIFY the CJB fuse 7 (7.5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

L2 CHECK THE GPSM (GLOBAL POSITIONING SYSTEM MODULE) GROUND CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C9050-6 Ground

Is the resistance less than 3 ohms?

Yes

GO to L3

No	REPAIR the circuit in question. CONNECT the negative battery cable.

L3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE GPSM (GLOBAL POSITIONING SYSTEM MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C9050-2 C251-3

C9050-3 C251-11

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to L4

No	REPAIR the circuit in question. CONNECT the negative battery cable.

L4 CHECK FOR CORRECT GPSM (GLOBAL POSITIONING SYSTEM MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the GPSM connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the GPSM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The TCM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The TCM communicates with the diagnostic scan tool through the HS-CAN .

Possible Sources

Fuse
Wiring, terminals and connectors
TCM

Visual Inspection and Diagnostic Pre-checks

Verify BJB fuses 34 (40A), 42 (7.5A) and CJB fuse 23 (7.5A) are OK.

PINPOINT TEST M: THE TCM (TRANSMISSION CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

M1 CHECK THE TCM (TRANSMISSION CONTROL MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect TCM C1750A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C1750A-1		Ground
C1750A-2		Ground
C1750A-18		Ground
C1750A-31		Ground

Are the voltages greater than 11 volts?

Yes

GO to M2

No	VERIFY the BJB fuses 34 (40A), 42 (7.5A) and CJB fuse 23 (7.5A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

M2 CHECK THE TCM (TRANSMISSION CONTROL MODULE) GROUND CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C1750A-3		Ground
C1750A-4		Ground
C1750A-5		Ground
C1750A-6		Ground

Are the resistances less than 3 ohms?

Yes

GO to M3

No	REPAIR the circuit in question. CONNECT the negative battery cable.

M3 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE TCM (TRANSMISSION CONTROL MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C1750A-34 C251-6

C1750A-35 C251-14

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to M4

No	REPAIR the circuit in question. CONNECT the negative battery cable.

M4 CHECK FOR CORRECT TCM (TRANSMISSION CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the TCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the TCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The RFA Module Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The RFA module communicates with the diagnostic scan tool through the HS-CAN and the MS-CAN .

Possible Sources

Fuse
Wiring, terminals and connectors
RFA module

Visual Inspection and Diagnostic Pre-checks

Verify CJB fuses 9 (20A) and 14 (20A) are OK.

PINPOINT TEST N: THE RFA (REMOTE FUNCTION ACTUATOR) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

N1 CHECK THE RFA (REMOTE FUNCTION ACTUATOR) MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect RFA module C3503A (natural hardshell).

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3503A-1 Ground

C3503A-2 Ground

Are the voltages greater than 11 volts?

Yes

GO to N2

No	VERIFY the CJB fuses 9 (20A) and 14 (20A) are OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

N2 CHECK THE RFA (REMOTE FUNCTION ACTUATOR) MODULE GROUND CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Disconnect RFA module C3503D (blue hardshell).

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3503A-3 Ground

Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3503D-3 Ground

C3503D-4 Ground

Are the resistances less than 3 ohms?

Yes

GO to N3

No	REPAIR the circuit in question. CONNECT the negative battery cable.

N3 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE RFA (REMOTE FUNCTION ACTUATOR) MODULE AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Disconnect RFA module C3503B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3503B-1 C251-6

C3503B-2 C251-14

Are the resistances less than 3 ohms?

Yes

GO to N4

No	REPAIR the circuit in question. CONNECT the negative battery cable.

N4 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE RFA (REMOTE FUNCTION ACTUATOR) MODULE AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3503B-15 C251-3

C3503B-14 C251-11

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to N5

No	REPAIR the circuit in question. CONNECT the negative battery cable.

N5 CHECK FOR CORRECT RFA (REMOTE FUNCTION ACTUATOR) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the RFA module connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the RFA module connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new RFA module.
REFER to: Remote Function Actuator (RFA) Module (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

The PSCM Does Not Respond To The Diagnostic Scan Tool

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The PSCM communicates with the diagnostic scan tool through the HS-CAN .

Possible Sources

Fuse
Wiring, terminals and connectors
PSCM

Visual Inspection and Diagnostic Pre-checks

Verify high current BJB mega fuse 2 (60A) and CJB fuse 21 (7.5A) are OK.

PINPOINT TEST O: THE PSCM (POWER STEERING CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

O1 CHECK THE PSCM (POWER STEERING CONTROL MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect PSCM C2368A and C2368C.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2368C-1 Ground

Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2368A-5 Ground

Are the voltages greater than 11 volts?

Yes

GO to O2

No	VERIFY the high current BJB mega fuse 2 (60A) or CJB fuse 21 (7.5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

O2 CHECK THE PSCM (POWER STEERING CONTROL MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Disconnect PSCM C2368B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2368B-1 Ground

Is the resistance less than 3 ohms?

Yes

GO to O3

No	REPAIR the circuit. CONNECT the negative battery cable.

O3 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE PSCM (POWER STEERING CONTROL MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2368A-2 C251-6

C2368A-6 C251-14

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to O4

No	REPAIR the circuit in question. CONNECT the negative battery cable.

O4 CHECK FOR CORRECT PSCM (POWER STEERING CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the PSCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the PSCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (EPAS).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

No HS-CAN Communication, All Modules Are Not Responding

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connectors
ABS module
APIM (if equipped)
IPC
OCSM
PSCM
PCM
RCM
RFA module
TCM (if equipped)

PINPOINT TEST P: NO HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) COMMUNICATION, ALL MODULES ARE NOT RESPONDING

NOTE: Various modules set network DTCs during this test procedure. Clear DTCs from all modules after completing the diagnostic procedure.

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

P1 CHECK THE DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE

Ignition OFF.

Disconnect the diagnostic scan tool cable from the DLC .

Inspect the DLC pins 6 and 14 for damage.

Are DLC pins 6 and 14 OK?

Yes

GO to P2

No	REPAIR the DLC as necessary.

P2 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) TERMINATION RESISTANCE

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 C251-14

Is the resistance between 54 and 66 ohms?

Yes

GO to P3

GO to P5

P3 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (+) AND HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TO GROUND

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 Ground

C251-14 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to P4

GO to P12

P4 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (+) AND HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TO VOLTAGE

Connect negative battery cable.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 Ground

C251-14 Ground

Is the voltage greater than 6 volts on either circuit?

Yes

REPAIR the circuit in question.

GO to P13

P5 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) TERMINATION RESISTOR

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 C251-14

Is the resistance between 108 and 132 ohms?

Yes

GO to P6

GO to P9

P6 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) TERMINATION RESISTOR WITH THE PCM (POWERTRAIN CONTROL MODULE) DISCONNECTED

Disconnect: PCM C1381B (1.0L GTDI EcoBoost), C175B (1.6L TiVCT) or C1915B (1.6L GTDI EcoBoost)

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 C251-14

Is the resistance between 108 and 132 ohms?

Yes

GO to P7

GO to P8

P7 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE PCM (POWERTRAIN CONTROL MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors
1.0L GTDI EcoBoost

Positive Lead Measurement / Action Negative Lead

C1381B-69 C251-6

C1381B-68 C251-14

Click to display connectors
1.6L GTDI EcoBoost

Positive Lead Measurement / Action Negative Lead

C1915B-69 C251-6

C1915B-68 C251-14

Click to display connectors
1.6L TiVCT

Positive Lead Measurement / Action Negative Lead

C175B-20 C251-6

C175B-19 C251-14

Are the resistances less than 3 ohms?

Yes

GO to P26

No	REPAIR the circuit in question.

P8 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE IPC (INSTRUMENT PANEL CLUSTER) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Disconnect: IPC C220B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C220B-5 C251-6

C220B-6 C251-14

Are the resistances less than 3 ohms?

Yes

GO to P23

No	REPAIR the circuit in question.

P9 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (+) AND HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TOGETHER

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 C251-14

Is the resistance less than 3 ohms?

Yes

GO to P11

GO to P10

P10 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (+) AND HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (-) CIRCUITS FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 C251-14

Is the resistance greater than 10,000 ohms?

Yes

REPAIR the DLC or REPAIR the circuit in question.

No	A capacitor internal to a module can still be draining, causing irregular resistance readings. WAIT 5 minutes. REPEAT the pinpoint test. If the concern is still present, REPAIR the circuit.

P11 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (+) AND HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TOGETHER WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 C251-14

Disconnect modules one at a time until the resistance is greater than 3 ohms.
- APIM C2383 (if equipped)
- ABS module C135
- IPC C220B
- OCSM C3159
- PCM C1381B (1.0L GTDI EcoBoost), C175B (1.6L TiVCT) or C1915B (1.6L GTDI EcoBoost)
- PSCM C2368A
- RCM C310B
- RFA module C3503B
- TCM C1750A (if equipped)

Did the resistance change to greater than 3 ohms with one of the modules disconnected?

Yes

For the APIM , GO to P21
For the ABS module, GO to P22
For the IPC , GO to P23
For the OCSM , GO to P24
For the PSCM , GO to P25
For the PCM , GO to P26
For the RCM , GO to P27
For the RFA module, GO to P28
For the TCM , GO to P29

No	REPAIR the circuits.

P12 CHECK THE HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (+) AND HS-CAN (HIGH-SPEED CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TO GROUND WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-6 Ground

C251-14 Ground

Disconnect modules one at a time until the resistance to ground is greater than 1,000 ohms.
- APIM C2383 (if equipped)
- ABS module C135
- IPC C220B
- OCSM C3159
- PCM C1381B (1.0L GTDI EcoBoost), C175B (1.6L TiVCT) or C1915B (1.6L GTDI EcoBoost)
- PSCM C2368A
- RCM C310B
- RFA module C3503B
- TCM C1750A (if equipped)

Did the resistance change to greater than 1,000 ohms with one of the modules disconnected?

Yes

No	REPAIR the circuit in question. CONNECT all modules.

P13 CHECK FOR RESTORED COMMUNICATION WITH THE PCM (POWERTRAIN CONTROL MODULE) , TCM (TRANSMISSION CONTROL MODULE) AND ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results. Disconnect: BJB fuses 22 (15A) and 42 (7.5A) to disable the PCM .

Disconnect: BJB fuse 1 (40A), fuse 35 (40A) and CJB fuse 22 (7.5A) to disable the ABS module.

Disconnect: BJB fuses 34 (40A) and 42 (7.5A) and CJB fuse 23 (7.5A) to disable the TCM (if equipped).

Using a diagnostic scan tool, perform the network test.

Do all other HS-CAN modules pass the network test?

Yes

INSTALL the removed fuses. GO to P14

No	INSTALL the removed fuses. GO to P15

P14 CHECK FOR RESTORED COMMUNICATION WITH THE ABS (ANTI-LOCK BRAKE SYSTEM) AND TCM (TRANSMISSION CONTROL MODULE) MODULES DISCONNECTED

Disconnect ABS module C135.

Using a diagnostic scan tool, perform the network test.

Disconnect TCM module C1750A (if equipped).

Using a diagnostic scan tool, perform the network test.

Do all other HS-CAN modules pass the network test?

Yes

CONNECT the modules. For restored communication with the ABS module disconnected, GO to Pinpoint Test B
For restored communication with the TCM disconnected, GO to Pinpoint Test M

No	CONNECT the modules. GO to Pinpoint Test A

P15 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE IPC (INSTRUMENT PANEL CLUSTER) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect CJB fuses 3 (7.5A), 19 (7.5A) and 21 (7.5A) to disable the IPC .

Using a diagnostic scan tool, perform the network test.

Do all other HS-CAN modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test E

No	INSTALL the removed fuses. If equipped with SYNC®, GO to P16 If not equipped with SYNC®, GO to P17

P16 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE APIM (SYNC MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect CJB fuse 10 (15A) to disable the APIM (if equipped).

Using a diagnostic scan tool, perform the network test.

Do all other HS-CAN modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test I

No	INSTALL the removed fuses. GO to P17

P17 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE PSCM (POWER STEERING CONTROL MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect high current BJB mega fuse 2 (60A) and CJB fuse 21 (7.5A) to disable the PSCM .

Using a diagnostic scan tool, perform the network test.

Do all other HS-CAN modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test O

No	INSTALL the removed fuses. GO to P18

P18 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE RCM (RESTRAINTS CONTROL MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect CJB fuse 20 (10A) to disable the RCM .

Using a diagnostic scan tool, perform the network test.

Do all other HS-CAN modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test C

GO to P19

P19 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect CJB fuse 4 (7.5A) to disable the OCSM .

Using a diagnostic scan tool, perform the network test.

Do all other HS-CAN modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test D

GO to P20

P20 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE RFA (REMOTE FUNCTION ACTUATOR) MODULE DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect CJB fuses 9 (20A) and 14 (20A) to disable the RFA module.

Using a diagnostic scan tool, perform the network test.

Do all other HS-CAN modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test N

No	INSTALL the removed fuses. The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

P21 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the APIM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

COMPLETE THE FDRS GUIDED ROUTINE

NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

P22 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) OPERATION

Ignition OFF.

Disconnect and inspect the ABS connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the ABS connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new ABS .
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

P23 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION

Ignition OFF.

Disconnect and inspect the IPC connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the IPC connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (IPC).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

P24 CHECK FOR CORRECT OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the OCSM connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the OCSM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

P25 CHECK FOR CORRECT PSCM (POWER STEERING CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the PSCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the PSCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (EPAS).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

P26 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the PCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the PCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (PCM).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

P27 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the RCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the RCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

P28 CHECK FOR CORRECT RFA (REMOTE FUNCTION ACTUATOR) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the RFA module connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the RFA module connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new RFA module.
REFER to: Remote Function Actuator (RFA) Module (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

P29 CHECK FOR CORRECT TCM (TRANSMISSION CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the TCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the TCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

No MS-CAN Communication, All Modules Are Not Responding

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connectors
APIM (if equipped with touchscreen)
IPC
BCM
GPSM (if equipped)
HVAC module
RFA module

PINPOINT TEST Q: NO MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) COMMUNICATION, ALL MODULES ARE NOT RESPONDING

NOTE: Various modules set network DTCs during this test procedure. Clear DTCs from all modules after completing the diagnostic procedure.

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

Q1 CHECK THE DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE

Ignition OFF.

Disconnect the diagnostic scan tool cable from the DLC .

Inspect the DLC pins 3 and 11 for damage.

Are DLC pins 3 and 11 OK?

Yes

GO to Q2

No	REPAIR the DLC as necessary.

Q2 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) TERMINATION RESISTANCE

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 C251-11

Is the resistance between 54 and 66 ohms?

Yes

GO to Q3

GO to Q5

Q3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (+) AND MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TO GROUND

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 Ground

C251-11 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to Q4

GO to Q12

Q4 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (+) AND MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TO VOLTAGE

Connect negative battery cable.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 Ground

C251-11 Ground

Is the voltage greater than 6 volts on either circuit?

Yes

REPAIR the circuit in question.

GO to Q13

Q5 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) TERMINATION RESISTOR

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 C251-11

Is the resistance between 108 and 132 ohms?

Yes

GO to Q6

GO to Q9

Q6 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) TERMINATION RESISTOR WITH THE BCM (BODY CONTROL MODULE) DISCONNECTED

Disconnect BCM C2280E.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 C251-11

Is the resistance between 108 and 132 ohms?

Yes

GO to Q7

GO to Q8

Q7 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE BCM (BODY CONTROL MODULE) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280E-6 C251-3

C2280E-7 C251-11

Are the resistances less than 3 ohms?

Yes

GO to Q21

No	REPAIR the circuit in question.

Q8 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE IPC (INSTRUMENT PANEL CLUSTER) AND THE DLC (DATA LINK CONNECTOR) FOR AN OPEN

Disconnect IPC C220B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C220B-1 C251-3

C220B-2 C251-11

Are the resistances less than 3 ohms?

Yes

GO to Q19

No	REPAIR the circuit in question.

Q9 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (+) AND MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TOGETHER

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 C251-11

Is the resistance less than 3 ohms?

Yes

GO to Q11

GO to Q10

Q10 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (+) AND MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (-) CIRCUITS FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 C251-11

Is the resistance greater than 10,000 ohms?

Yes

REPAIR the DLC or REPAIR the circuit in question.

No	A capacitor internal to a module can still be draining, causing irregular resistance readings. WAIT 5 minutes. REPEAT the pinpoint test. If the concern is still present, REPAIR the circuit.

Q11 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (+) AND MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TOGETHER WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 C251-11

Disconnect modules one at a time until the resistance is greater than 3 ohms.
- APIM C2383 (if equipped with touchscreen)
- IPC C220B
- BCM C2280E
- GPSM C9050 (if equipped)
- HVAC module C228B
- RFA module C3503B

Did the resistance change to greater than 3 ohms with one of the modules disconnected?

Yes

For the APIM , GO to Q21
For the IPC , GO to Q19
For the BCM , GO to Q20
For the GPSM , GO to Q22
For the HVAC module, GO to Q23
For the RFA module, GO to Q24

No	REPAIR the circuit in question. CONNECT all modules.

Q12 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (+) AND MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TO GROUND WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-3 Ground

C251-11 Ground

Disconnect modules one at a time until the resistance to ground is greater than 1,000 ohms.
- APIM C2383 (if equipped with touchscreen)
- IPC C220B
- BCM C2280E
- GPSM C9050 (if equipped)
- HVAC module C228B
- RFA module C3503B

Did the resistance change to greater than 1,000 ohms with one of the modules disconnected?

Yes

For the APIM , GO to Q21
For the IPC , GO to Q19
For the BCM , GO to Q20
For the GPSM , GO to Q22
For the HVAC module, GO to Q23
For the RFA module, GO to Q24

No	REPAIR the circuit in question. CONNECT all modules.

Q13 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE IPC (INSTRUMENT PANEL CLUSTER) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect CJB fuses 3 (7.5A), 19 (7.5A) and 21 (7.5A) to disable the IPC .

Using a diagnostic scan tool, perform the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test E

No	INSTALL the removed fuses. GO to Q14

Q14 CHECK FOR RESTORED COMMUNICATION WITH THE BCM (BODY CONTROL MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results. Disconnect CJB fuse 21 (7.5A) to disable the BCM

Using a diagnostic scan tool, perform the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test F

No	INSTALL the removed fuses. If equipped with a GPSM , GO to Q15 If not equipped with a GPSM , GO to Q16

Q15 CHECK FOR RESTORED COMMUNICATION WITH THE GPSM (GLOBAL POSITIONING SYSTEM MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results. Disconnect CJB fuse 7 (7.5A) to disable the GPSM .

Using a diagnostic scan tool, perform the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test L

No	INSTALL the removed fuse. GO to Q16

Q16 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect CJB 12 (7.5A) to disable the HVAC module.

Using a diagnostic scan tool, perform the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuse.
GO to Pinpoint Test G

No	INSTALL the removed fuse. If equipped with touchscreen, GO to Q17 If not equipped with touchscreen, GO to Q18

Q17 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE APIM (SYNC MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect CJB 10 (15A) to disable the APIM .

Using a diagnostic scan tool, perform the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test I

No	INSTALL the removed fuse. GO to Q18

Q18 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE RFA (REMOTE FUNCTION ACTUATOR) MODULE DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect CJB fuses 9 (20A) and 14 (20A) to disable the RFA module.

Using a diagnostic scan tool, perform the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test N

No	The MS-CAN tests within specification. VERIFY the correct operation of the diagnostic scan tool on a known good vehicle.

Q19 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION

Ignition OFF.

Disconnect and inspect the IPC connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the IPC connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

Q20 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the BCM connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the BCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

Q21 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the APIM connectors. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

COMPLETE THE FDRS GUIDED ROUTINE

NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

Q22 CHECK FOR CORRECT GPSM (GLOBAL POSITIONING SYSTEM MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the GPSM connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the GPSM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

Q23 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the HVAC module connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the HVAC module connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new HVAC module.
REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module (412-00 Climate Control System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

Q24 CHECK FOR CORRECT RFA (REMOTE FUNCTION ACTUATOR) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the RFA module connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the RFA module connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new RFA module.
REFER to: Remote Function Actuator (RFA) Module (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

No Infotainment Controller Area Network (I-CAN) Communication, All Modules Are Not Responding

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Communications Network - System Operation and Component Description (418-00 Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connectors
ACM
APIM (if equipped)
IPC
FCDIM (if equipped)
FCIM (if equipped)

PINPOINT TEST R: NO INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) COMMUNICATION, ALL MODULES ARE NOT RESPONDING

NOTE: Various modules set network DTCs during this test procedure. Clear DTCs from all modules after completing the diagnostic procedure.

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

R1 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE ACM (AUDIO FRONT CONTROL MODULE) DISCONNECTED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the previously run network test results.

Disconnect ACM C240A.

Using a diagnostic scan tool, perform a network test.

Do all other Infotainment Controller Area Network (I-CAN) modules pass the network test?

Yes

GO to R10

GO to R2

R2 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) TERMINATION RESISTANCE

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-14 C240A-15

Is the resistance between 108 and 132 ohms?

Yes

GO to R3

GO to R6

R3 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) (+) AND INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) (-) CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-14 Ground

C240A-15 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to R4

No	REPAIR the circuit in question.

R4 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) (+) AND INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) (-) CIRCUITS FOR A SHORT TO VOLTAGE

Disconnect IPC C220B.

Connect the negative battery cable.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-14 Ground

C240A-15 Ground

Is the voltage greater than 6 volts?

Yes

REPAIR the circuit in question.

GO to R5

R5 CHECK FOR RESTORED NETWORK COMMUNICATION

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the previously run network test results.

Ignition OFF.

Connect all module(s). Make sure all connectors seat and latch correctly.

Ignition ON.

Using a diagnostic scan tool, perform the network test.

Do all other Infotainment Controller Area Network (I-CAN) modules pass the network test?

Yes

The Infotainment Controller Area Network (I-CAN) tests within specification. VERIFY the correct operation of the diagnostic scan tool on a known good vehicle.

GO to R13

R6 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) CIRCUITS BETWEEN THE ACM (AUDIO FRONT CONTROL MODULE) AND THE IPC (INSTRUMENT PANEL CLUSTER) FOR AN OPEN

Disconnect IPC C220B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-14 C220B-10

C240A-15 C220B-9

Are the resistances less than 3 ohms?

Yes

CONNECT the battery negative cable. GO to R7

No	REPAIR the circuit in question. CONNECT the battery negative cable.

R7 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) (+) AND INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) (-) CIRCUITS FOR A SHORT TOGETHER

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-14 C240A-15

Is the resistance greater than 1,000 ohms?

Yes

GO to R8

No	REPAIR the circuit in question.

R8 CHECK THE INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) (+) AND INFOTAINMENT CONTROLLER AREA NETWORK (I-CAN) (-) CIRCUITS FOR A SHORT TOGETHER WITH MODULES DISCONNECTED

NOTE: Skip to the end of this test once the suspect module has been identified.

Disconnect negative battery cable

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-14 C240A-15

Disconnect modules one at a time until the resistance is greater than 1,000 ohms.
- APIM C2383 (if equipped)
- FCDIM C2123 (if equipped)
- FCIM C2402 (if equipped)
- IPC C220B

Is the resistance greater than 1,000 ohms with one of the modules disconnected?

Yes

CONNECT the negative battery cable.
For the APIM (if equipped), GO to R9
For the FCDIM , GO to R11
For the FCIM , GO to R12
For the IPC , GO to R13

No	REPAIR circuits in question for a short together. CONNECT the modules. CONNECT the negative battery cable. CLEAR the DTCs.

R9 CHECK THE APIM (SYNC MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the APIM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

COMPLETE THE FDRS GUIDED ROUTINE

NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

R10 CHECK THE ACM (AUDIO FRONT CONTROL MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the ACM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

R11 CHECK THE FCDIM (FRONT CONTROL/DISPLAY INTERFACE MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the FCDIM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the FCDIM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

R12 CHECK THE FCIM (FRONT CONTROLS INTERFACE MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the FCIM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the FCIM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new FCIM .
REFER to: Front Controls Interface Module (FCIM) (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Removal and Installation).
or REFER to: Front Controls Interface Module (FCIM) (415-00B Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC/Touchscreen Display, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

R13 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the IPC connectors.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the IPC connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (IPC).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

No Power To The DLC

Normal Operation and Fault Conditions

The diagnostic scan tool is connected to the DLC to communicate with modules on the HS-CAN and MS-CAN . A loss of ground or poor ground at the DLC may result in HS-CAN or MS-CAN faults while the diagnostic scan tool is connected.

Possible Sources

Fuse
Wiring, terminals or connector
DLC
Diagnostic scan tool

PINPOINT TEST S: NO POWER TO THE DLC (DATA LINK CONNECTOR)

S1 CHECK DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

Ignition OFF.

Disconnect the diagnostic scan tool cable from the DLC .

Inspect DLC pins 4, 5 and 16 for damage.

Are DLC pins 4, 5 and 16 OK?

Yes

GO to S2

No	REPAIR the DLC as necessary.

S2 CHECK THE DLC (DATA LINK CONNECTOR) VOLTAGE SUPPLY FOR AN OPEN

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-16 Ground

Is the voltage greater than 11 volts?

Yes

GO to S3

No	VERIFY the CJB fuse 5 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

S3 CHECK THE DLC (DATA LINK CONNECTOR) GROUND CIRCUITS FOR AN OPEN

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C251-4 Ground

C251-5 Ground

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. REPAIR the diagnostic scan tool.

No	REPAIR the circuit in question. CONNECT the negative battery cable.

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S..

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Removal

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Axle. Removal and Installation