PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:C1A62

DTC Code DTC Name
C1A62 Brake Control Signal Malfunction

DESCRIPTION

The brake actuator assembly (skid control ECU) receives brake control request signals from the pre-crash safety city sensor. When the brake actuator assembly (skid control ECU) determines that there is a malfunction in the request signal from the pre-crash safety city sensor, the ECU sends a brake control malfunction signal to the pre-crash safety city sensor. This DTC is output when the pre-crash safety city sensor receives a malfunction signal.

DTC Code DTC Detection Condition Trouble Area
C1A62 The ignition switch is ON and a brake control system malfunction signal is continuously received from the brake actuator assembly (skid control ECU) for 3 seconds or more.

  • Vehicle stability control system

  • Brake actuator assembly (skid control ECU)

  • Pre-crash safety city sensor

CAUTION / NOTICE / HINT

Note


  • When replacing the pre-crash safety city sensor, replace it with a new one. If an ECU which was installed to another vehicle is used, the information stored in the pre-crash safety city sensor will not match the information from the vehicle and, as a result, a DTC may be output.

  • If the pre-crash safety city sensor has been replaced, or the windshield glass has been replaced or removed/installed, be sure to perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

  • First check the CAN communication system by following How to Proceed with Troubleshooting. After checking that there are no malfunctions in the CAN communication system, proceed to troubleshooting Click here.

  • Perform adjustment using "ONE TIME RECOGNITION" or "SEQUENTIAL RECOGNITION".


PROCEDURE


  1. CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. Check for DTCs Click here.

      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.

    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.

      Result
      Result Proceed to
      DTC C1A62 is not output A
      DTC C1A62 is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

  3. REPLACE PRE-CRASH SAFETY CITY SENSOR


    1. Replace the pre-crash safety city sensor with a new one Click here.


    NEXT

  4. CHECK FOR DTCs


    1. Clear the DTCs (See page PC-28).

    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 (See page PC-28).

      Result
      Result Proceed to
      DTC C1A62 is not output A
      DTC C1A62 is output (for LHD) B
      DTC C1A62 is output (for RHD) C

    A

    END (PRE-CRASH SAFETY CITY SENSOR WAS DEFEVTIVE)

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) Click here

    C

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) Click here