PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:C1A47

DTC Code DTC Name
C1A47 Steering Angle Sensor

DESCRIPTION

The brake actuator assembly (skid control ECU) receives steering rotation angle information from the spiral with sensor cable sub-assembly (steering angle sensor), and sends the information to the driving support ECU assembly via CAN communication.

If the brake actuator assembly (skid control ECU) detects a malfunction of the spiral with sensor cable sub-assembly (steering angle sensor), it sends a malfunction signal to the driving support ECU assembly and stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A47 Steering Angle Sensor While the vehicle speed is 50 km/h (31 mph) or more, a spiral with sensor cable sub-assembly (steering angle sensor) malfunction signal is received from the brake actuator assembly (skid control ECU) for 2 seconds or more.

  • Vehicle stability control system

  • Brake actuator assembly (skid control ECU)

  • Driving support ECU assembly

CAUTION / NOTICE / HINT

Note

When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle. As a result, a DTC may be stored.

PROCEDURE


  1. CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / ABS/VSC/TRC / Trouble Codes.

    5. Check for DTCs.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Result Proceed to
      Vehicle stability control system DTCs are not output A
      Vehicle stability control system DTCs are output B

    B

    GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

    A

  2. REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)


    1. Replace the brake actuator assembly (skid control ECU) with a new one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK FOR DTCs


    1. Clear the DTCs.

      Click here


      Body Electrical > Pre-Crash 2 > Clear DTCs

    2. Make sure that the DTC detection conditions are met.

      Tech Tips

      If the detection conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

      Click here


      Body Electrical > Pre-Crash 2 > Trouble Codes
      Result
      Result Proceed to
      DTC C1A47 is not output A
      DTC C1A47 is output B

    A

    END (BRAKE ACTUATOR ASSEMBLY [SKID CONTROL ECU] WAS DEFECTIVE)

    B

    REPLACE DRIVING SUPPORT ECU ASSEMBLY Click here