Honda HR-V Owners & Service Manuals

Honda HR-V: Keyless Access Backup Control Unit - Diagnostics

Honda HR-V (2015-2021) Service Manual / Accessories & Equipment / Keyless Access Backup Control Unit - Diagnostics

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 DTC B1926 Backup Control Anten Open or Short

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-CA

 DTC B1931 Backup Control Unit No Response

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

 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-CA

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 DTC U128D (Keyless Access Backup Control Unit) Backup Control Unit Lost Communication With Gauge Control Module

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 are required prior to this checking process). DTC (Backup Control Unit) NOTE: If you are troubleshoo

 PCM Power and Ground Circuit Troubleshooting

1. Engine starting check. Try to start the engine. Does the engine start and idle smoothly? YES Go to the F-CAN circuit troubleshooting. NO Go to step 2. 2. Fuse check. Turn the vehicle to the OFF (LOCK) mode. Check the following fuse. Is the fuse OK? YES Go to step 6. NO Go to step 3. 3. Sh

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