Honda HR-V: Keyless Access Backup Control Unit - Diagnostics
Honda HR-V (2015-2021) Service Manual / Accessories & Equipment / Keyless Access Backup Control Unit - Diagnostics
- DTC B1926 Backup Control Anten Open or Short
- DTC B1931 Backup Control Unit No Response
- DTC U1280 (Keyless Access Backup Control Unit) B-CAN Communication Bus Line Error (BUS-OFF)
- DTC U128D (Keyless Access Backup Control Unit) Backup Control Unit Lost Communication With Gauge Control Module
READ NEXT:
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
SEE MORE:
Fuel Supply System Description - Fuel Pump
The fuel tank unit consists of the following components.
2WD
AWD
FUEL SUPPLY SYSTEM DESCRIPTION - JET PUMP (AWD)
Operation
The return fuel entering the jet pump from the fuel pressure regulator passes
through the orifice in the jet pump
to increase the flow speed, which generates increased suctio
F-CAN Circuit Troubleshooting
1. F-CAN circuit resistance check:
Turn the vehicle to the OFF (LOCK) mode.
Jump the SCS line with the HDS.
SCS Short
Disconnect the following connector.
PCM connector A (51P)
Measure the resistance between test points 1 and 2.
Is there about 78-95 --
YES
Go to step 14.
NO
Go to step 2.
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