DTC C1231/31 Steering Angle Sensor Circuit Malfunction: Description
WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
The steering angle sensor signal is sent to the skid control ECU through the CAN communication system. When there is a malfunction in the communication, it will be detected by the diagnosis function.
DTC DETECTION CONDITION CHART
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1231/31 | When ECU IG1 terminal voltage is 9.5 V or more, the steering angle sensor malfunction signal is received. |
|