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Home >> Acura >> 2016 >> MDX Base >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake - DTC Diagnostics (Except Hybrid) >> DTC Troubleshooting >> DTC C1110-11, C1111-11

DTC C1110-11, C1111-11

DTC C1110-11  : Left-Rear Electric Parking Brake Actuator Circuit Short to Ground

DTC C1111-11  : Right-Rear Electric Parking Brake Actuator Circuit Short to Ground

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

DTC Description DTC
C1110-11 Left-Rear Electric Parking Brake Actuator Circuit Short to Ground  
C1111-11 Right-Rear Electric Parking Brake Actuator Circuit Short to Ground  

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
    C1110-11 Left-Rear Electric Parking Brake Actuator Circuit Short to Ground  
    C1111-11 Right-Rear Electric Parking Brake Actuator Circuit Short to Ground  

    Is DTC C1110-11 or C1111-11 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. Shorted wire check (L EPB SET, R EPB SET 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
      Electric parking brake control unit 30P connector: disconnected
      Appropriate electric parking brake actuator 2P connector: disconnected
    Test circuit 1  
    Test point 1 Electric parking brake control unit 30P connector No. 2
    Test point 2 Body ground
    Test circuit 2  
    Test point 1 Electric parking brake control unit 30P connector No. 4
    Test point 2 Body ground

    Is there continuity?

    YES 

    Repair a short to body ground in the wire between the electric parking brake control unit and the appropriate electric parking brake actuator.

    NO 

    The L EPB SET and R EPB SET wires are OK. Go to step 3.

  3. Shorted wire check (L EPB REL, R EPB REL lines)

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

    Test condition Vehicle OFF (LOCK) mode
      Electric parking brake control unit 30P connector: disconnected
      Appropriate electric parking brake actuator 2P connector: disconnected
    Test circuit 1  
    Test point 1 Electric parking brake control unit 30P connector No. 6
    Test point 2 Body ground
    Test circuit 2  
    Test point 1 Electric parking brake control unit 30P connector No. 8
    Test point 2 Body ground

    Is there continuity?

    YES 

    Repair a short to body ground in the wire between the electric parking brake control unit and the appropriate electric parking brake actuator.

    NO 

    Replace the appropriate electric parking brake actuator .