Ford Fiesta: Exterior Lighting / Daytime Running Lamps (DRL). Diagnosis and Testing
Symptom Chart(s)
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: DRL
Symptom Chart
Condition
|
Possible Sources
|
Actions
|
A module does not respond to the diagnostic scan tool
|
-
Fuse
-
Wiring, terminals or connectors
-
Module
|
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
|
The DRL are inoperative
|
Refer to the Pinpoint Test
|
GO to Pinpoint Test A
|
Pinpoint Tests
The DRL Are Inoperative
Normal Operation and Fault Conditions
REFER to: Exterior Lighting - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).
Possible Sources
-
Wiring, terminals or connectors
-
Ignition switch
-
BCM
Visual Inspection and Diagnostic Pre-checks
-
Inspect the multifunction switch for damage.
PINPOINT TEST A: THE DRL (DAYTIME RUNNING LAMPS)
ARE INOPERATIVE
A1 CHECK THE OPERATION OF THE HEADLAMPS |
-
Place the headlamp switch in the headlamps on position.
Do the headlamps operate correctly?
No |
DIAGNOSE the low beam headlamps. REFER to: Headlamps (417-01 Exterior Lighting, Diagnosis and Testing).
|
|
A2 CHECK THE IGNITION SWITCH PID (PARAMETER IDENTIFICATION)
|
-
Using a diagnostic scan tool, view BCM Parameter Identifications (PIDs).
-
Monitor the BCM IGN_SW_RUN PID while cycling the ignition ON and OFF.
Does the ignition switch PID value agree with the ignition state?
No |
REFER to: Steering Wheel and Column Electrical Components (211-05
Steering Wheel and Column Electrical Components, Diagnosis and Testing).
|
|
A3 CHECK FOR CORRECT BCM (BODY CONTROL MODULE)
OPERATION |
-
Disconnect and inspect all 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 |
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 BCM . REFER to: Body Control Module (BCM) (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.
|
|
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)...
Adjustment
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Other information:
Symptom Chart(s)
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).
Dust and Water Leaks
Most
dust and water leaks occur due to missing or incorrectly installed body
sealer or components...
Removal
Refer to: Brake and Clutch Systems Health and Safety Precautions (100-00 General Information, Description and Operation).
Remove the brake pads.
Refer to: Brake Pads (206-03 Front Disc Brake, Removal and Installation)...
Categories
Preliminary Inspection
Verify the customer concern by carrying out a road test on a
smooth road. If any vibrations are apparent, Refer to the Symptom
Chart: NVH.
To maximize tire performance, inspect for signs of incorrect
inflation and uneven wear, which may indicate a need for balancing,
rotation or front suspension alignment.
Correct tire pressure and driving techniques have an
important influence on tire life. Heavy cornering, excessively rapid
acceleration and unnecessary sharp braking increase tire wear.
Correct
tire pressure and driving techniques have an important influence on
tire life. Heavy cornering, exce
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