VARIABLE GEAR RATIO STEERING SYSTEM, Diagnostic DTC:C15C1/74, C15C2/74

DTC Code DTC Name
C15C1/74 Steering Angle Sensor Malfunction
C15C2/74 Steering Angle Sensor B+ Malfunction

DESCRIPTION

The steering control ECU detects a steering angle sensor malfunction by receiving an error signal from the steering angle sensor via CAN communication. If the steering control ECU detects this error signal, it will turn the master warning light on, store these DTCs, and stop VGRS operation.

DTC Code Detection Condition Trouble Area
C15C1/74 The steering control ECU receives a steering angle sensor malfunction signal via CAN communication

  • Steering angle sensor

  • CAN communication system

  • Steering control ECU
C15C2/74 The steering control ECU receives a B+ open circuit signal from the steering angle sensor via CAN communication

  • Steering angle sensor

  • CAN communication system

  • Steering control ECU

WIRING DIAGRAM

A001E3SE19
*a from D-IG1-1 Relay
*b from Battery
*c Steering Angle Sensor
*d Steerin g Control ECU

PROCEDURE


  1. CHECK DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)


    1. Check for DTCs in the skid control ECU Click here.

      Result
      Result Proceed to
      DTC is not output OK
      DTC is output NG

    NG

    REPAIR CIRCUIT INDICATED BY DTC OUTPUT

    OK

  2. CHECK DTC (CAN COMMUNICATION SYSTEM)


    1. Check for DTCs in the CAN communication system Click here.

      Result
      Result Proceed to
      DTC is not output A
      DTC is output B

    A

    REPLACE STEERING CONTROL ECU Click here

    B

    REPAIR CIRCUIT INDICATED BY DTC OUTPUT