ELECTRIC PARKING BRAKE SYSTEM, Diagnostic DTC:C13A6

DTC Code DTC Name
C13A6 Open or Short Circuit in Motor

DESCRIPTION

The parking brake cable tightening/loosening operation is performed by the parking brake actuator's motor.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
C13A6 Open or Short Circuit in Motor

  • Diagnosis Condition:

    Electric parking brake switch assembly is operated to lock side with engine switch off or engine switch is turned on (IG)

  • Malfunction Status:

    Parking brake motor circuit malfunction when power supply voltage and +B voltage are normal

  • Malfunction Duration:

    Approximately 1 to 2 seconds

  • Parking brake with bracket actuator assembly

  • Wire harness or connector

  • Parking brake ECU assembly

 Yes An electric parking brake system malfunction is displayed on the multi-information display.
DTC Detection Condition Combination Table: C13A6
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Electric parking brake switch assembly is operated to lock side with engine switch off ○ -
Engine switch on (IG) - ○
Malfunction Status Parking brake motor circuit malfunction when power supply voltage and +B voltage are normal ○ ○
Detection Time Approximately 1 to 2 seconds Approximately 1 to 2 seconds
Trip Count 1 trip 1 trip

Tech Tips

If the conditions match either of these patterns, a DTC will be output.

WIRING DIAGRAM

B006D51E04
*a Parking Brake with Bracket Actuator Assembly
*b Parking Brake ECU Assembly

CAUTION / NOTICE / HINT

Note


  • The electric parking brake may still operate up to 20 seconds after the engine switch is turned off. Before disconnecting connectors or fuses, turn the engine 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 - PARKING BRAKE WITH BRACKET ACTUATOR ASSEMBLY)


    1. Turn the engine switch off.

    2. Disconnect the L76 parking brake ECU assembly connector.

    3. Disconnect the L78 parking brake with bracket actuator assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L76-1 (M-) - L78-7 (M-) Always Below 1 Ω
      L76-1 (M-) or L78-7 (M-) - Body ground Always 10 kΩ or higher
      L76-2 (M+) - L78-8 (M+) Always Below 1 Ω
      L76-2 (M+) or L78-8 (M+) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK PARKING BRAKE WITH BRACKET ACTUATOR ASSEMBLY (PARKING BRAKE MOTOR)


    1. Turn the engine switch off.

    2. B006B4JC06
      *a

      Component without harness connected

      (Parking Brake with Bracket Actuator Assembly)

      Disconnect the L78 parking brake with bracket actuator assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L78-7 (M-) - L78-8 (M+) Always Below 4 Ω
      L78-7 (M-) - Body ground Always 10 kΩ or higher
      L78-8 (M+) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE PARKING BRAKE ECU ASSEMBLY Click here

    NG

    REPLACE PARKING BRAKE WITH BRACKET ACTUATOR ASSEMBLY Click here