Honda HR-V: DTC Troubleshooting U3000-49: Electric Parking Brake Control Unit Internal 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 for DTCs with the HDS.

Is DTC U3000-49 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 control unit check (update or substitution):

1. 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.
2. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
3. Check for DTCs with the HDS.

Is DTC U3000-49 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.

DTC TROUBLESHOOTING U3000-51: ELECTRIC PARKING BRAKE CONTROL UNIT PROGRAMMING ERROR

NOTE:

• Do not turn the vehicle to the OFF (LOCK) mode while updating the electric parking brake control unit.

  If you turn the vehicle to the OFF (LOCK) mode before completion, the electric parking brake control unit will be damaged.

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

1. Electric parking brake control unit check (update):
   1. Update the electric parking brake control unit if it does not have the latest software.
   2. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
   3. Check for DTCs with the HDS.

Is DTC U3000-51 indicated?

YES

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

If necessary, 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

Troubleshooting is complete.

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