ELECTRIC PARKING BRAKE SYSTEM, Diagnostic DTC:C13A0/11, C13A5/41, C13B0

DTC Code DTC Name
C13A0/11 Open in Power Supply Relay Circuit
C13A5/41 Electric Current of Motor
C13B0 Electric Parking Brake ECU Malfunction

DESCRIPTION

The electric parking brake ECU performs the lock/release operation of the parking brake based on signals from the electric parking brake switch, or instruction signals from other systems via CAN communication.

DTC Code Detection Condition Trouble Area
C13A0/11

Both of following conditions are met:


  1. Electric parking brake ECU is ON (engine switch is on (IG), or 15 sec. after engine switch is off and electric parking brake switch lock control is operating)

  2. Electric parking brake ECU's power source relay is open for approx. 0.5 sec.

 Electric parking brake ECU
C13A5/41

All of following conditions are met:


  1. Electric parking brake ECU is ON (engine switch is on (IG), or 15 sec. after engine switch is off and electric parking brake switch lock control is operating)

  2. Electric parking brake ECU's internal current is abnormal

  3. When parking brake is operating, problem occurs for 0.3 sec.; when parking brake is not operating, problem occurs for 0.5 sec.

 Electric parking brake ECU
C13B0

All of following conditions are met:


  1. Electric parking brake ECU is ON (engine switch is on (IG), or 15 sec. after engine switch is off and electric parking brake switch lock control is operating)

  2. Electric parking brake ECU's internal voltage is abnormal, or EEPROM is malfunctioning

  3. Problem occurs for approx. 0.5 sec.

 Electric parking brake ECU

INSPECTION PROCEDURE

Note

If the electric parking brake ECU or electric parking brake actuator is replaced, perform the "Reset Memory" and "ACQUIRE TENSION SENSOR ZERO POINT" procedures Click here.

PROCEDURE


  1. REPLACE ELECTRIC PARKING BRAKE ECU


    1. Replace electric parking brake ECU Click here.


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