DTC C1531 ECU Malfunction
DTC C1532 ECU Malfunction
DTC C1533 ECU Malfunction
DTC C1534 ECU Malfunction
DTC C1535 ECU Malfunction
DESCRIPTIONThe fail-safe function operates to stop power assist when DTCs indicating ECU malfunctions are stored. However, the power assist operation continues when DTC C1533 or C1534 is stored because it indicates an EEPROM error in the ECU.
|DTC No.||DTC Detection Condition||Trouble Area|
|C1531||ECU internal malfunction (CPU malfunction)||Power steering ECU assembly|
|C1532||ECU internal malfunction (Peripheral circuit malfunction)|
|C1533||ECU internal malfunction (Substrate temperature sensor malfunction)|
|C1534||ECU internal malfunction (EEPROM error)|
|C1535||ECU internal malfunction (Steering wheel location data error)|
- If the power steering ECU assembly has been replaced, perform the torque sensor zero point calibration and assist map writing (Click here).
Check for DTCs (Click here).
Result Result Proceed to DTCs other than C1531, C1532, C1533, C1534 and C1535 are output A Other DTC are not output B