Steering Control System

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. DTC REPRODUCTION PROCEDURE

With CONSULT
1.Turn the ignition switch OFF to ON.
2.Perform "EPS" self-diagnosis.
Is DTC "C1143" detected?
YES- Proceed to diagnosis procedure. Refer to "Diagnosis Procedure" .
NO- Inspection End.


Diagnosis Procedure


1. CHECK STEERING ANGLE SENSOR CIRCUIT

Check steering angle sensor circuit. Refer to "Diagnosis Procedure" C1143.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace malfunctioning component.

2. CHECK TERMINALS AND HARNESS CONNECTORS

Check the power steering control module pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES- Power steering control module is malfunctioning. Replace power steering oil pump assembly.
Refer to "Disassembly and Assembly" Disassembly and Assembly.
NO- Repair or replace malfunctioning component.
Revision: March 20122013 Infiniti JX