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:
DTC B0021-1A
Special Tools Required
SRS Short Canceller 070AZ-SAA0100
NOTE:
Before doing this troubleshooting procedure, find out if the vehicle was
in a collision. If so, verify
that all the required components were replaced with new components of the
correct part number,
and that they were properly ins
Symptom Troubleshooting
CHARGING SYSTEM SYMPTOM TROUBLESHOOTING INDEX
CHARGING SYSTEM INDICATOR STAYS ON
Diagnostic procedure
1. Gauges Self-Diagnostic Function
CIRCUIT DIAGRAM
CHARGING SYSTEM CIRCUIT DIAGRAM
Without Keyless Access System
With Keyless Access System
WIRING DIAGRAM
CHARGING SYSTEM ELECTRONIC WIRING DIAGRA
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