Honda HR-V: DTC U1280 (Keyless Access Backup Control Unit) B-CAN Communication
Bus Line Error (BUS-OFF)
DTC (Backup Control Unit)
NOTE: If you are troubleshooting multiple DTCs, be sure to
follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body
Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial
Communication and DTC Checks.
1. Problem verification.
- Clear the DTCs with the HDS.
Clear DTCs
- Turn the vehicle to the OFF (LOCK) mode and then the ON mode.
- Wait for at least 6 seconds.
- Check for DTCs with the HDS.
Is DTC U1280 indicated?
YES
Go to MICU DTC U1280 troubleshooting.
NO
Intermittent failure, the system is OK at this time. Check for loose or poor
connections.
READ NEXT:
NOTE: The DTC may be stored due to the grounding failure or the power source
failure at the transmitting
control unit (the grounding inspection and the power source inspection on each
control unit a
DTC (Keyless Access Control Unit)
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the
instructions in B-CAN System
Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting
SEE MORE:
Removal
1. Rear Door Protection Tape - Remove
Remove the rear door protection tape (A).
NOTE : Slowly peel up the old
door protection tape while heating it with a hair dryer.
Installation
1. Rear Door Protection Tape - Install
Clean the door bonding surface with a sponge dampened in isoprop
NOTE: Before you troubleshoot, review the how to troubleshoot the
electric parking brake system.
1. Problem verification:
Turn the vehicle to the ON mode.
Clear the DTC with the HDS.
Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
Check for DTCs with the HDS.
Is DTC C1100-54 i