What is a Honda CR-V 1st Gen airbag control unit?
The Honda CR-V 1st Gen airbag control unit is the central safety unit of the Supplemental Restraint System (SRS), which activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of a crash. It continuously monitors sensor data, stores important crash information, and ensures the proper functioning of all airbag modules in the vehicle.
This control unit is responsible for controlling and monitoring the entire airbag system. It receives real-time data from various sensors and makes decisions about deployment.
These include signals from front and side impact sensors, as well as seat belt and seat occupancy sensors. Rollover sensors are also integrated for activating the side curtain airbags.
The device features multiple connections for all components involved and an interface for vehicle diagnostics. It operates on the typical 12V vehicle electrical system voltage of the Honda CR-V 1st Gen.
Why is the Honda CR-V 1st Gen airbag control unit defective?
A Honda CR-V 1st Gen airbag control unit often fails when it permanently stores crash data after an accident, requiring reinitialization. Internal component failures or communication problems with other vehicle systems, such as the instrument cluster, can also lead to failure and impair the function of the SRS system.
Typically, the airbag control unit is disabled after a collision to prevent accidental deployment. The stored crash data must be professionally erased to restore the system to full functionality.
Electrical malfunctions or aging of internal components can also lead to failures. This often manifests itself in persistent airbag warning lights or specific diagnostic trouble codes.
A successful Honda CR-V 1st Gen airbag control unit repair resolves these issues and ensures that all safety-relevant functions of the airbag system function correctly again.
Common error codes for Honda CR-V 1st Gen airbag control unit repair
During a Honda CR-V 1st Gen airbag control module repair, specific manufacturer-specific B-codes will occur, indicating internal problems or communication errors within the control module. These include B1000 for internal control module errors and B1187 for loss of communication with the instrument cluster, which makes diagnosis easier.
- B1000 → Control unit communication error → Signals an internal problem or communication deficit of the airbag control unit itself.
- B1187 → Gauge Control Module (instrument panel) lost communication with airbag control module → Indicates that the instrument cluster cannot establish communication with the SRS unit, which points directly to the control module.
- B1906 → Airbag Crash Sensor #2 Feed/Return Circuit Short to Ground → This sensor code indirectly affects the control module because it detects and stores the malfunction in the communication circuit.
These error codes relate exclusively to the airbag control unit and require a precise diagnosis. A repair shop can read these codes and perform a precise Honda CR-V 1st Gen airbag control unit repair.
What part numbers are available for the Honda CR-V 1st Gen airbag control unit repair?
For Honda CR-V 1st Gen airbag control unit repairs, only specific, 100% verified Honda OEM part numbers are relevant. The current common part number is 77960-TLA-A25. Compatible predecessors such as 77960-TLA-A22, -A23, -A24, and the OEM number 77960T0AA110M1 are also suitable for full functionality.
The primary and most current part number for the airbag control module is 77960-TLA-A25. This is verified directly by Honda and listed in official OEM catalogs.
The numbers 77960-TLA-A22, 77960-TLA-A23, and 77960-TLA-A24 are also fully compatible original replacement numbers. They can be used for Honda CR-V 1st Gen airbag control unit repair.
Additionally, OEM part number 77960T0AA110M1 is confirmed as the exact control unit. It is recommended by professional airbag repairers for the 1st generation Honda CR-V.
No other third-party OEM part numbers such as Bosch, Continental, or Autoliv could be matched with 100% certainty. Therefore, it is recommended to use only genuine Honda parts to ensure safety and compatibility.