C1531

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1521, C1531-C1534: Motor Circuit Malfunction


DESCRIPTION

If the power steering ECU assembly stores these DTCs, it will shut off the motor relay circuit (built into the power steering ECU assembly and stop power assist. However, power assist continues if DTC C1533 or C1534 is output.





INSPECTION PROCEDURE

NOTICE:
If the steering column assembly or power steering ECU assembly has been replaced, perform rotation angle sensor value initialization and torque sensor zero point calibration Programming and Relearning.

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result:





B -- REPAIR CIRCUITS INDICATED BY OUTPUT DTCS Power Steering System

A -- REPLACE POWER STEERING ECU ASSEMBLY Removal