Honda HR-V: DTC Troubleshooting C1110-12, C1111-12: Electric Parking Brake Actuator Circuit Short to Power

NOTE: Before you troubleshoot, review the how to troubleshoot the electric parking brake system.

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. Pull the electric parking brake switch to apply the parking brake, then press the brake pedal and push the electric parking brake switch to release the parking brake.
5. Check for DTCs with the HDS.

Is DTC C1110-12 or C1111-12 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. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.

2. Shorted wire check (EPB L ACT+, EPB R ACT+ 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. Turn the vehicle to the ON mode
4. Measure the voltage between test points 1 and 2.

Is there battery voltage?

YES

Repair a short to power in the EPB L ACT+ or EPB R ACT+ wires between the electric parking brake control unit and the appropriate electric parking brake actuator.

NO

Repair a short to power in the EPB L ACT- or EPB R ACT- wires between the electric parking brake control unit and the appropriate electric parking brake actuator.

DTC TROUBLESHOOTING C1110-13, C1111-13: LEFT-REAR ELECTRIC PARKING BRAKE ACTUATOR CIRCUIT OPEN

NOTE: Before you troubleshoot, review the how to troubleshoot the electric parking brake system.

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. Pull the electric parking brake switch to apply the parking brake, then press the brake pedal and push the electric parking brake switch to release the parking brake.
5. Check for DTCs with the HDS.

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. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.

2. Power source check:

Check the parameter(s) below with the HDS.

Is there battery voltage indicated?

YES

Go to step 3.

NO

Go to step 4.

3. Open wire check (EPB L ACT+, EPB L ACT-, EPB R ACT+, EPB R ACT- lines):

1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connectors.

Appropriate electric parking brake actuator 2P connector

Electric parking brake control unit 30P connector

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

Is there continuity?

YES

Replace the appropriate electric parking brake actuator.

NO

Repair an open in the EPB L ACT+, EPB L ACT-, EPB R ACT+, EPB R ACT- wires 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.

Are the fuses OK?

YES

The fuse is OK. Reinstall the fuse. Repair an open in the +B EPB L wire between the electric parking brake control unit No. 1 terminal and the rear fuse/relay box No. D2-2 (30 A) fuse or repair an open in the +B EPB R wire between the electric parking brake control unit No. 3 terminal and the rear fuse/relay box No. D2-5 (30 A) fuse.

NO

Replace the fuse. If the fuse blows again, repair a short to ground in the No. D2-5 (30 A) or No. D2-2 (30 A) fuse circuit.

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