2AR-FE without Wireless Door Lock

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for 2AR-FE without Wireless Door Lock): C1531-C1535: ECU Malfunction
C1535 - ECU Malfunction

DESCRIPTION

The fail-safe function operates to stop power assist when DTCs indicating ECU malfunctions are stored. However, power assist operation continues when DTC C1533 or C1534 is stored because it indicates an EEPROM error in the ECU.





INSPECTION PROCEDURE

NOTICE:
If the power steering ECU assembly has been replaced with a new one, perform assist map writing and torque sensor zero point calibration 2AR-FE without Wireless Door Lock.

PROCEDURE

1. CHECK FOR DTC

(a) Check for DTCs 2AR-FE without Wireless Door Lock.

OK:

DTCs other than C1531, C1532, C1533, C1534 and C1535 are not output.

NG -- REPAIR CIRCUITS INDICATED BY OUTPUT DTCS 2AR-FE without Wireless Door Lock

OK -- REPLACE POWER STEERING ECU ASSEMBLY Removal