LANE DEPARTURE ALERT SYSTEM(w/ Steering Control), Diagnostic DTC:C1A50

DTC Code DTC Name
C1A50 Brake System

DESCRIPTION

This DTC is stored when the lane departure warning camera receives a vehicle stability control system signal from the brake actuator assembly (skid control ECU) and a malfunction occurs in the vehicle stability control system.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A50 Brake System

  • 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 the engine switch is on (IG) and an input signal malfunction is received for 5 seconds or more from the brake actuator assembly (skid control ECU).

  • Vehicle stability control system

  • Brake actuator assembly (skid control ECU)

  • 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

  • When replacing the brake actuator assembly (skid control ECU), perform initialization and calibration of the linear solenoid valve.

PROCEDURE


  1. CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM)


    1. Clear the DTCs.

      Click here


      Chassis > ABS/VSC/TRC > 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 > 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. 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 for DTCs.

      Click here


      Chassis > Lane Departure Alert > Trouble Codes
      Result
      Result Proceed to
      DTC C1A50 is not output A
      DTC C1A50 is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

  3. REPLACE LANE DEPARTURE WARNING CAMERA


    1. Replace the lane departure warning camera.

      Click here

    2. Perform the lane departure warning camera adjustment.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. 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 for DTCs.

      Click here


      Chassis > Lane Departure Alert > Trouble Codes
      Result
      Result Proceed to
      DTC C1A50 is not output A
      DTC C1A50 is output B

    A

    END (LANE DEPARTURE WARNING CAMERA WAS DEFECTIVE)

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) Click here