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:
EPS System Description - EPS Control
The base current is a basic current value to drive the motor. Base current is
calculated using steering torque and
vehicle speed.
EPS motor torque tends to be lower as the vehicle begins to move, and higher as
it decreases in speed due to
inertia of the rotating body. Inertia compensation increas
Coolant Replacement
Replacement
1. Radiator Cap - Remove
Wait until the engine is cool, then carefully remove the radiator cap.
2. Engine Undercover - Remove (With Engine Undercover)
3. Engine Coolant - Drain
Loosen the drain plug (A), and drain the coolant
After the coolant has drained, tighten the radiator dra
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