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DTC C1231/31 Steering Angle Sensor Circuit Malfunction: Description

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 DETECTING CONDITION 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.
  • Steering angle sensor
  • Steering angle sensor circuit
  • Steering angle sensor power supply
  • CAN communication system