LANE DEPARTURE ALERT SYSTEM(w/ Steering Control), 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 and sends the information to the lane departure warning camera. When a steering angle sensor malfunction signal is received, DTC C1A47 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A47 Steering Angle Sensor

  • 2 seconds elapse after turning the engine switch on (IG).

  • The IG voltage is 10 V or higher.

  • 2 seconds elapse after the IG voltage is 10 V or higher.

  • When a steering angle sensor malfunction signal is received for 5 seconds or more from the brake actuator assembly (skid control ECU).

  • Spiral with sensor cable sub-assembly

  • Lane departure warning camera

CAUTION / NOTICE / HINT

Note


  • When the lane departure warning camera is replaced with a new one or it is removed, adjustment of the lane departure warning camera axis must be performed.

    Click here

  • The lane departure alert system uses the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the lane departure alert system after confirming that the communication systems are functioning properly.

    for LHD: Click here

    for RHD: Click here

  • The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

    Click here

PROCEDURE


  1. CHECK FOR DTCs (POWER STEERING SYSTEM)


    1. for Manual Tilt and Manual Telescopic Steering Column:


      1. Clear the DTCs.

        Click here


        Chassis > EMPS > 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 the DTCs.

        Click here


        Chassis > EMPS > Trouble Codes

    2. for Power Tilt and Power Telescopic Steering Column:


      1. Clear the DTCs.

        Click here


        Chassis > EMPS > 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


        Chassis > EMPS > Trouble Codes
      Result
      Result Proceed to
      Power steering system DTCs are not output A
      Power steering system DTCs are output (for Manual Tilt and Manual Telescopic Steering Column) B
      Power steering system DTCs are output (for Power Tilt and Power Telescopic Steering Column) C

    B

    GO TO POWER STEERING SYSTEM Click here

    C

    GO TO POWER STEERING SYSTEM Click here

    A

  2. REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY


    1. Replace the spiral with sensor cable sub-assembly with a new or normally functioning one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK FOR DTCs


    1. Clear the DTCs.

      Click here


      Chassis > Lane Departure Alert > 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 the DTCs.

      Click here


      Chassis > Lane Departure Alert > Trouble Codes
      Result
      Result Proceed to
      DTC C1A47 is not output A
      DTC C1A47 is output B

    A

    END (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY WAS DEFECTIVE)

    B

    REPLACE LANE DEPARTURE WARNING CAMERA Click here