Honda HR-V: DTC Troubleshooting C1110-96, C1111-96: Electric Parking Brake Actuator Malfunction

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 C1110-96 or C1111-96 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. Rear brake component parts check (brake caliper, brake pad, brake disc, and electric parking brake actuator):

1. Turn the vehicle to the OFF (LOCK) mode.
2. Check that the appropriate rear brake component parts are properly mounted.

Is the rear brake component parts installation OK?

YES

Replace the appropriate electric parking brake actuator.

NO

Reinstall the rear brake component parts, and recheck its mounting position, then go to step 1.

DTC TROUBLESHOOTING C1120-14: ELECTRIC PARKING BRAKE SWITCH CIRCUIT MALFUNCTION

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

Is there INVALID 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. Electric parking brake switch check:

1. Turn the vehicle to the OFF (LOCK) mode.
2. Check the electric parking brake switch.

Is the electric parking brake switch OK?

YES

Go to step 3.

NO

Replace the electric parking brake/automatic brake hold switch.

3. Shorted wire check (SW1, SW2, SW3, SW4 lines):

1. Disconnect the following connectors.

Electric parking brake/automatic brake hold switch 12P connector

Electric parking brake control unit 30P connector

2. Check for continuity between the following test points and body ground individually.

Is there continuity?

YES

Repair a short to body ground in the SW1, SW2, SW3, SW4 wires between the electric parking brake control unit and the electric parking brake/automatic brake hold switch.

NO

The SW1, SW2, SW3, SW4 wires are not shorted. Go to step 4.

4. Open wire check (SW1, SW2, SW3, SW4 lines):

Check for continuity between test points 1 and 2.

Is there continuity?

YES

The SW1, SW2, SW3, SW4 wires are OK. Go to step 5.

NO

Repair an open in the SW1, SW2, SW3, SW4 wires between the electric parking brake control unit and the electric parking brake/automatic brake hold switch.

5. Electric parking brake control unit check (update or substitution):

1. Reconnect the following connectors.

Electric parking brake/automatic brake hold switch 12P connector

Electric parking brake control unit 30P connector

2. Update the electric parking brake control unit if it does not have the latest software. If the unit already has the latest software, substitute a known-good electric parking brake control unit.
3. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
4. Check for DTCs with the HDS.

Is DTC C1120-14 indicated?

YES

Check for loose terminals and poor connections in the electric parking brake control unit 30P connector.

If the electric parking brake control unit was updated, substitute a known-good electric parking brake control unit and recheck. If the electric parking brake control unit was substituted and the symptom/indication is still present, replace the original electric parking brake control unit.

NO

If the electric parking brake control unit was updated, troubleshooting is complete. If the electric parking brake control unit was substituted, replace the original electric parking brake control unit.

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