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
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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
SEE MORE:
Description
MOONROOF SYSTEM DESCRIPTION - COMPONENTS
Moonroof Switch
The moonroof switch is mounted in the front individual map light assembly.
MOONROOF SYSTEM DESCRIPTION - CONTROL/FUNCTION
Operation (Manual)
The moonroof is activated by pushing the switch to the first detent of the
open or close position.
Op
How to Troubleshoot the Heating and A/C Systems (KA/KC)
Button/Switch/Indicator
How to Use the Self-Diagnostic Function
The HVAC control unit has a self-diagnostic function. To run the
self-diagnostic function, do the following:
1. Turn the vehicle to the OFF (LOCK) mode.
2. Press and hold the RECIRCULATION button and REAR WINDOW DEFOGGER button, then
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