DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1535: ECU Malfunction: Description
WARNING: This page is about a different car, the 2013 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
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.
| 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) |