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LANE DEPARTURE ALERT SYSTEM, Diagnostic DTC:C1A47

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DTC Code DTC Name
C1A47 Steering Angle Sensor
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DESCRIPTION

The forward recognition camera receives steering angle information from the steering angle sensor (spiral with sensor cable sub-assembly). If the forward recognition camera detects a steering angle sensor (spiral with sensor cable sub-assembly) malfunction, DTC C1A47 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A47 Steering Angle Sensor When the vehicle is being driven at a speed of 5 km/h (4 mph) or more 2 seconds after the ignition switch is turned to ON, a signal from the steering angle sensor (spiral with sensor cable sub-assembly) indicating that there is a steering angle sensor (spiral with sensor cable sub-assembly) malfunction is detected by the forward recognition camera for 5 seconds or more.

  • Vehicle stability control system

  • Steering angle sensor (spiral with sensor cable sub-assembly)

  • Forward recognition camera
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CAUTION / NOTICE / HINT

Note:

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

  • If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Axis Adjustment.

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  • The lane departure alert system uses the CAN communication system. First, confirm that there are no malfunctions in the CAN communication system. Refer to How to Proceed with Troubleshooting.

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    for RHD:Click here

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PROCEDURE


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    CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM)

    Tip:

    Lane departure alert system DTC C1A47 may be stored due to a malfunction in the vehicle stability control system. Therefore it is necessary to check for and troubleshoot vehicle stability control system DTCs first.


    1. Check for DTCs.

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      1. 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

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    CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)


    1. Clear the DTCs.

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      1. Chassis > LKA/LDA > Clear DTCs


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

      Tip:

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

    3. Check for DTCs.

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      1. Chassis > LKA/LDA > Trouble Codes


      Result
      Result Proceed to
      DTC C1A47 is not output A
      DTC C1A47 is output B

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    REPLACE FORWARD RECOGNITION CAMERA


    1. Replace the forward recognition camera.

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    2. Perform Forward Recognition Camera Axis Adjustment.

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      Result
      Proceed to
      NEXT

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    CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)


    1. Clear the DTCs.

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      1. Chassis > LKA/LDA > Clear DTCs


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

      Tip:

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

    3. Check for DTCs.

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      1. Chassis > LKA/LDA > Trouble Codes


      Result
      Result Proceed to
      DTC C1A47 is not output A
      DTC C1A47 is output B

    • A

      END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE)

    • B

      REPLACE STEERING ANGLE SENSOR (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY)Click here