Honda HR-V Owners & Service Manuals

Honda HR-V: DTC U3003-16 Power Supply Voltage Too Low

Honda HR-V (2015-2021) Service Manual / Accessories & Equipment / Multipurpose Camera Unit - Diagnostics / DTC U3003-16 Power Supply Voltage Too Low

NOTE : Before you troubleshoot, review the how to troubleshoot information - Refer to: How to Troubleshoot the Forward Collision Warning (FCW), or How to Troubleshoot the Lane Departure Warning (LDW).

Multipurpose Camera Unit - Diagnosticsc

DTCs (FCW/LDW)

1. Problem verification.

  1. Turn the vehicle to the ON mode.
  2. Clear the DTC with the HDS.

Clear DTCs

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Wait for 10 seconds.
  3. Test-drive the vehicle at 40 km/h (25 mph) or more with the LDW activated.

NOTE : Drive the vehicle on the road, not on a lift.

  1. Check for DTCs with the HDS.

Multipurpose Camera Unit - Diagnosticsc

Is DTC U3003-16 indicated?

YES

Go to step 2.

NO

Intermittent failure, the system is OK at this time.

2. Fuse check.

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Wait for 10 seconds.
  3. Check the following fuse.

Multipurpose Camera Unit - Diagnosticsc

Is the fuse OK?

YES

The fuse is OK. Reinstall the fuse, then go to step 3.

NO

Replace the fuse. If the fuse blows again, repair the short to ground on the No. C21 (10 A) fuse circuit.

3. Open wire check (+B MP CAMERA line).

  1. Disconnect the following connector.

Multi purpose camera unit 12P connector

  1. Measure the voltage between test points 1 and 2.

Multipurpose Camera Unit - Diagnosticsc

Is there more than 8.3 V?

YES

Check for poor connections or loose terminals at the multi purpose camera unit. If OK, replace the multi purpose camera unit.

NO

Repair an open in the wire between the under-dash sub fuse/relay box and the multi purpose camera unit.

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