C1534

POWER STEERING: ELECTRONIC POWER STEERING SYSTEM: C1531: ECU Malfunction

DTC C1531 - ECU Malfunction

DTC C1532 - ECU Malfunction

DTC C1533 - ECU Malfunction

DTC C1534 - ECU Malfunction

DESCRIPTION

Fail-safe function operates to stop power assist while DTCs indicating ECU malfunctions are output. However, power assist continues when DTC C1534 is output because it indicates an EEPROM error in the ECU.






INSPECTION PROCEDURE

PROCEDURE

1. RECONFIRM DTC
(a) Check for DTCs.
OK:
DTCs other than C1531, C1532, C1533 and C1534 are not output.
NG -- REPAIR CIRCUIT INDICATED BY OUTPUT CODE
OK -- REPLACE POWER STEERING ECU