What is a Honda HR-V 2nd Gen airbag control unit?
The Honda HR-V 2nd Gen airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules in the vehicle to maximize passenger safety.
This module coordinates the deployment of front, side, and curtain airbags as well as seat belt pretensioners based on incoming sensor information.
It processes signals from impact sensors, seat occupancy and weight sensors, and a rollover sensor.
Precise monitoring ensures that airbags are deployed only when needed and in the best possible way for the occupants. A precise diagnosis is the first step to a successful Honda HR-V 2nd Gen airbag control unit repair.
Why is the Honda HR-V 2nd Gen airbag control unit defective?
The Honda HR-V 2nd Gen airbag control unit often fails because it stores crash data after an accident, preventing it from being restored to its original condition. Internal errors such as memory failures or communication problems caused by overvoltage or aging can also render the module inoperable and require repair.
After an impact, the control unit stores indelible crash data, making it impossible to use again without a reset.
Internal component failures or software problems can also cause malfunctions that activate the airbag warning light.
An unstable power supply or short circuits in the vehicle's system can damage the sensitive electronic module. A defective Honda HR-V 2nd Gen airbag control unit often requires specialized repair or replacement.
Common error codes for Honda HR-V 2nd Gen airbag control unit repair
During Honda HR-V 2nd Gen airbag control module repair, specific B-codes indicate internal module issues. These error codes signal communication failures, memory defects, or sensor monitoring issues that require precise diagnosis and resolution.
- B1000 → Control unit communication error → The airbag control unit has a fault in the internal or external communication.
- B1001 → Internal memory error in the airbag control unit → A defect in the internal data memory of the airbag control unit was detected.
- B1005 → Internal self-test failed → The airbag control unit could not successfully complete its own functional test.
- B1010 → Power supply to airbag control unit interrupted → The power supply to the airbag control unit is insufficient or interrupted.
- B1020 → Signal loss from crash sensor → The airbag control unit receives no or incorrect signals from a crash sensor.
- B1100 → Airbag Deployment Monitoring Error → There is a problem in the airbag deployment circuit.
- B1200 → Memory error after crash recording → The airbag control unit has an incorrect or incomplete crash data recording.
What part numbers are available for the Honda HR-V 2nd Gen airbag control unit repair?
For Honda HR-V 2nd Gen airbag control unit repairs, specific OEM part numbers are crucial for compatibility. These authenticated numbers identify the correct airbag control unit for your vehicle, ensuring full functionality and safety after replacement or repair.
- 77960-T7S-A21
- 77960T7SA212M2
- 77960T7SK410M2
- 77960-3V0-A81
These genuine Honda OEM part numbers fit various models of the 2nd generation HR-V from 2016 to 2024.
It is important that the replaced unit carries one of these validated numbers to ensure smooth operation, especially during the Honda HR-V 2nd Gen airbag control unit repair.
The repair or replacement must be performed using the correct part number, as supplier part numbers are often not publicly available. Accurate diagnosis of the error codes will help determine whether the airbag control unit is defective and requires professional repair.