ELECTRIC PARKING BRAKE SYSTEM, Diagnostic DTC:C13A2/22

DTC Code DTC Name
C13A2/22 Engine / Power Switch Malfunction

DESCRIPTION

When the ignition switch is turned to ON, an ignition signal is sent to the electric parking brake ECU through the CAN communication line and direct line.

This DTC is stored when the ignition signals from the CAN communication line and direct line do not match.

DTC Code DTC Detection Condition Trouble Area
C13A2/22 The ignition signals sent through the CAN communication line and direct line do not match.

  • CAN communication system

  • Backup boost converter circuit (Stop and start system)

  • Harness or connector

  • Electric parking brake ECU (Parking brake with bracket actuator assembly)

WIRING DIAGRAM

A004O0ZE02
*1 CAN Communication Line
*2 Electric Parking Brake ECU (Parking Brake with Bracket Actuator Assembly)
*3 Engine Stop and Start ECU

CAUTION / NOTICE / HINT

Note


  • Before performing work, turn the ignition switch off and wait approximately 20 seconds to make sure that the parking brake cannot operate.

  • When replacing the parking brake with bracket actuator assembly, perform zero point calibration Click here.

PROCEDURE


  1. CHECK DTC (CAN COMMUNICATION SYSTEM)


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      CAN DTC is not output. A
      CAN DTC is output. B

    B

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (IG TERMINAL)


    1. Disconnect the I1 electric parking brake ECU connector.

    2. A004O9JE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Electric Parking Brake ECU)

      Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I1-19 (IG) - Body ground Ignition switch ON 9.5 to 14 V

    NG

    INSPECT STOP AND START SYSTEM (BACKUP BOOST CONVERTER CIRCUIT) Click here

    OK

  3. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

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

    A

    REPLACE PARKING BRAKE WITH BRACKET ACTUATOR ASSEMBLY Click here

    B

    USE SIMULATION METHOD TO CHECK Click here