U14FF

Description

EPS control unit receives the vehicle speed signal from combination meter via CAN communication line.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. CHECK SELF-DIAGNOSIS RESULTS

With CONSULT
Perform self-diagnosis for "EPS" with CONSULT.





Is above displayed on the self-diagnosis display?
YES- Proceed to diagnosis procedure. .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK COMBINATION METER SYSTEM

With CONSULT
Perform self-diagnosis for "METER/M&A". Repair or replace items indicated, then perform self-diagnosis again. Combination Meter.
Is any item indicated on the self-diagnosis display?
YES- Repair or replace malfunctioning components.
NO- GO TO 2.

2. CHECK CONNECTOR

With CONSULT
1.Turn ignition switch OFF.
2.Disconnect EPS control unit harness connector.
3.Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
4.Reconnect connectors and then perform self-diagnosis for "EPS" with CONSULT.
Is any item indicated on the self-diagnosis display?
YES- Replace EPS control unit. Exploded View.
NO- Poor connection of connector terminal. Repair or replace connector.


Special Repair Requirement


1. ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform the neutral position adjustment for the steering angle sensor, when replacing the steering column assembly. Special Repair Requirement. (VDC models)
- END