Ford Fiesta: Power Steering / Power Steering - Overview. Description and Operation

Ford Fiesta 2014 - 2019 Service Manual / Steering System / Power Steering / Power Steering - Overview. Description and Operation

Overview

The EPAS system provides steering assist to the driver by replacing the conventional, hydraulic pump system with an electric motor coupled to the steering shaft. The system is controlled by the PSCM which senses the steering effort using sensors mounted between the steering column shaft and the steering gear. Steering assist is provided in proportion to steering effort and vehicle speed.

Power Steering

Power Steering - System Operation and Component Description. Description and Operation

System Operation System Diagram Item Description 1 EPAS column 2 HS-CAN 3 EPAS motor 4 Steering shaft position sensor 5 Steering shaft torque sensor 6 PSCM 7 IPC 8 ABS module 9 PCM Network Message Chart ..

Other information:

Ford Fiesta 2014 - 2019 Service Manual: Crankshaft Position (CKP) Sensor. Removal and Installation

Removal NOTE: Removal steps in this procedure may contain installation details. With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview (100-02 Jacking and Lifting, Description and Operation). Remove the retainers and the heat shield. Disconnect the CKP sensor electr..

Ford Fiesta 2014 - 2019 Service Manual: Pinpoint Test - DTC: S. Diagnosis and Testing

B1408:11, B1408:12, B1408:13 and B1408:1A Refer to Wiring Diagrams Cell 46 for schematic and connector information. Normal Operation and Fault Conditions The RCM continuously monitors the RH side air curtain circuits for the following faults: Resistance out of range Unexpected voltage Short to ground Faulted RH side air curtain If..

Wheels and Tires. Diagnosis and Testing

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