Vehicle Stability Control System (For BOSCH Made)

DTC C1231/31 Steering Angle Sensor Circuit Malfunction

DESCRIPTION

DTC Detection Condition:

The steering angle sensor signal is 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.

Wiring Diagram:

Step 1:

Step 2-3:

INSPECTION PROCEDURE

HINT:
- When U0073/94, U0100/63, U0123/62 and/or U0126/63 is output together with C1231/31, inspect and repair the trouble areas indicated by U0073/94, U0100/65, U0123/62 and/or U0126/63 first.
- When the speed sensor or the yaw rate and acceleration sensor has trouble, DTCs for the steering angle sensor may be output even when the steering angle sensor is normal. When DTCs for the speed sensor or yaw rate and acceleration sensor are output together with other DTCs for the steering angle sensor, inspect and repair the speed sensor and yaw rate and acceleration sensor first, and then inspect and repair the steering angle sensor.
- Check the condition of each related circuit connector before troubleshooting.