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

DTC Code Detection Condition Trouble Area
C13A0/11

Both of following conditions are met:


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

  2. Parking brake ECU assembly's power source relay is open for approx. 0.5 sec.

 Parking brake ECU assembly
C13A5/41

All of following conditions are met:


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

  2. Parking brake ECU assembly'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.

 Parking brake ECU assembly
C13B0

All of following conditions are met:


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

  2. Parking brake ECU assembly's internal voltage is abnormal, or EEPROM is malfunctioning

  3. Problem occurs for approx. 0.5 sec.

 Parking brake ECU assembly

CAUTION / NOTICE / HINT

Note

If the parking brake ECU assembly is replaced, perform the "Reset Memory" and "Acquire Tension Sensor Zero Point" procedures Click here.

PROCEDURE


  1. REPLACE PARKING BRAKE ECU ASSEMBLY


    1. Replace parking brake ECU assembly Click here.


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