Vehicle Stability Control System
DTC C1231/31 Steering Angle Sensor Circuit MalfunctionDESCRIPTION
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.
DTC Detection Condition:
Wiring Diagram (part 1):
Wiring Diagram (part 2):
HINT:
^ When U0073/94, U0123/62, U0124/95 or U0126/63 is output together with C1231/31 inspect and repair the trouble areas indicated by U0073/94, U0123/62, U0124/95 or U0126/63 first.
^ When the speed sensor or the yaw rate 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 sensor are output together with other DTCs for the steering angle sensor, inspect and repair the speed sensor and yaw rate sensor first, and then inspect and repair the steering angle sensor.
^ Start the inspection from step 1 when using the intelligent tester and from step 2 when not using the intelligent tester.
INSPECTION PROCEDURE
Steps 1-2:
Steps 3-5:
Step 5 (continued):
