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Home >> Acura >> 2019 >> MDX Base >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake - DTC Diagnostics (Except Hybrid) >> DTC Troubleshooting >> DTC C1110-13, C1111-13

DTC C1110-13, C1111-13

DTC C1110-13  : Left-Rear Electric Parking Brake Actuator Circuit Open

DTC C1111-13  : Right-Rear Electric Parking Brake Actuator Circuit Open

NOTE: Before you troubleshoot, review the general troubleshooting information .

DTC Description DTC
C1110-13 Left-Rear Electric Parking Brake Actuator Circuit Open  
C1111-13 Right-Rear Electric Parking Brake Actuator Circuit Open  

DTC (Electric parking brake)

  1. Problem verification

    - 1. Turn the vehicle to the ON mode.

    - 2. Clear the DTC with the HDS.

    - 3. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

    - 4. Apply the parking brake, then press the brake pedal and release the parking brake.

    - 5. Check for DTCs with the HDS.

    DTC Description DTC
    C1110-13 Left-Rear Electric Parking Brake Actuator Circuit Open  
    DTC Description DTC
    C1111-13 Right-Rear Electric Parking Brake Actuator Circuit Open  

    Is DTC C1110-13 or C1111-13 indicated?

    YES 

    The failure is duplicated. Go to step 2.

    NO 

    Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting .

  2. Power source check

    - 1. Check the parameter (s) below with the HDS.

    Signal Current conditions
    Values Unit
    ELECTRIC PARKING BRAKE LEFT SIDE MOTOR POWER    
    ELECTRIC PARKING BRAKE RIGHT SIDE MOTOR POWER    

    Is there battery voltage indicated?

    YES 

    Go to step 3.

    NO 

    Go to step 4.

  3. Open wire check (EPB SET, EPB REL lines)

    - 1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Disconnect the following connectors.

    Electric parking brake control unit 30P connector
    Appropriate electric parking brake actuator 2P connector

    - 3. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Appropriate electric parking brake actuator 2P connector: disconnected
      Electric parking brake control unit 30P connector: disconnected
    Test circuit 1  
    Test point 1 Electric parking brake control unit 30P connector No. 2
    Test point 2 Left electric parking brake actuator 2P connector (female terminals) No. 2: (1)
    Test circuit 2  
    Test point 1 Electric parking brake control unit 30P connector No. 6
    Test point 2 Left electric parking brake actuator 2P connector (female terminals) No. 1: (1)
    Test circuit 3  
    Test point 1 Electric parking brake control unit 30P connector No. 4
    Test point 2 Right electric parking brake actuator 2P connector (female terminals) No. 2: (1)
    Test circuit 4  
    Test point 1 Electric parking brake control unit 30P connector No. 8
    Test point 2 Right electric parking brake actuator 2P connector (female terminals) No. 1: (1)
    GHH317597Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Replace the appropriate electric parking brake actuator .

    NO 

    Repair an open in the wire between the electric parking brake control unit and the appropriate electric parking brake actuator.

  4. Fuse check

    - 1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Check the following fuses.

    Fuse No. F15 (30 A)
      No. F16 (30 A)
    Location Rear fuse/relay box

    Are the fuses OK?

    YES 

    The fuse is OK. Reinstall the fuse. Repair an open in the wire between the electric parking brake control unit and the rear fuse/relay box.

    NO 

    Replace the fuse. If the fuse blows again, repair a short to ground in the No. F15 (30 A) or No. F16 (30 A) fuse circuit.