ELECTRIC PARKING BRAKE SYSTEM, Diagnostic DTC:C13A2

DTC Code DTC Name
C13A2 Engine Switch/Power Switch Malfunction

DESCRIPTION

Power is supplied to the parking brake ECU assembly from the BECU terminal.

C13A2 is stored if the IG power source is not input to the parking brake ECU assembly when communication with other ECUs occurs.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
C13A2 Engine Switch/Power Switch Malfunction

  • Diagnosis Condition:

    While the vehicle speed is 6 km/h (4 mph) or more and CAN communication is established with both the hybrid vehicle control ECU assembly and main body ECU (multiplex network body)

  • Malfunction Status:

    IG power source not input to parking brake ECU assembly

  • Malfunction Duration:

    Approximately 3 seconds

  • Wire harness or connector

  • IG power source circuit

  • Parking brake ECU assembly

 Yes An electric parking brake system malfunction is displayed on the multi-information display.

WIRING DIAGRAM

B004RZGE05

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • The electric parking brake may still operate up to 20 seconds after the power switch is turned off. Before disconnecting connectors or fuses, turn the power switch off and wait 20 seconds or more.

  • If the parking brake ECU assembly or parking brake with bracket actuator assembly is replaced, perform the "Reset Memory" and "Acquire Tension Sensor Zero Point" procedures.

    Click here

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (PARKING BRAKE ECU ASSEMBLY - IG POWER SOURCE CIRCUIT)


    1. Turn the power switch off.

    2. Disconnect the parking brake ECU assembly connector.

    3. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      L77-4 (IG) - Body ground Power switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR IG POWER SOURCE CIRCUIT

    OK

  2. CHECK DTC


    1. Clear the DTCs.

      Click here


      Chassis > Electric Parking Brake > Clear DTCs

    2. Turn the power switch off.

    3. Check for DTCs.

      Click here


      Chassis > Electric Parking Brake > Trouble Codes
      Result
      Result Proceed to
      DTC is output A
      DTC is not output B

    A

    REPLACE PARKING BRAKE ECU ASSEMBLY Click here

    B

    USE SIMULATION METHOD TO CHECK Click here