Honda HR-V: 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).
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DTCs (FCW/LDW)
1. Problem verification.
- Turn the vehicle to the ON mode.
- Clear the DTC with the HDS.
Clear DTCs
- Turn the vehicle to the OFF (LOCK) mode.
- Wait for 10 seconds.
- 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.
- Check for DTCs with the HDS.
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Is DTC U3003-16 indicated?
YES
Go to step 2.
NO
Intermittent failure, the system is OK at this time.
2. Fuse check.
- Turn the vehicle to the OFF (LOCK) mode.
- Wait for 10 seconds.
- Check the following fuse.
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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).
- Disconnect the following connector.
Multi purpose camera unit 12P connector
- Measure the voltage between test points 1 and 2.
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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.
READ NEXT:
COMMUNICATION SYSTEMS DESCRIPTION (F-CAN) - OVERVIEW
F-CAN (High-speed CAN)
The network between the powertrain and control units for chassis system is
called F-CAN and it employs high
speed CAN with
NETWORK COMMUNICATION DTC TROUBLESHOOTING INDEX
NOTE : Record all DTCs, and sort them by DTC type using the DTC
troubleshooting index, then troubleshoot
the DTC(s) in this order:
Internal error DTC
SEE MORE:
NOTE:
This diagnosis is applied to the audio unit (without navigation) only.
Refer to the navigation system section for audio-navigation unit System
Diagnostic Mode.
The screens detail indicated may change depending on equipment or
specification.
Start-Up Procedure and Diagnostic Menu
NOTE
Special Tools Required
Oil Seal Driver Attachment, 58 mm 07JAD-PH80101
Holder, Companion 07PAB-0020000
Driver, 32.5 mm 070AD-SAA0100
Driver Handle, 15 x 135L 07749-0010000
Exploded View
1. Transfer Assembly - Exploded View
Fig. 56: Exploded View Of Transfer Assembly With Torque Specifications
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