DTC C1231/31 Steering Angle Sensor Circuit Malfunction: Description
WARNING: This page is about a different car, the 2006 Lexus IS 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 via 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.
DIAGNOSIS TROUBLE CODE CHART
| DTC No. | 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. |
|