DTC C1231/31 Steering Angle Sensor Circuit Malfunction: Description
WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
Steering angle sensor signals are sent to the skid control ECU via the CAN communication system. When there is a malfunction in the CAN communication system, it will be detected by the steering angle sensor zero point malfunction diagnostic function.
DTC DETECTION CONDITION CHART
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1231/31 | When ECU IG1 terminal voltage is between 9.5 and 17.4 V, a steering angle sensor malfunction signal is received. |
|