Airbag control unit with part number 77960-3V0-A910-M2

What is the function of Airbag Control Unit 77960-3V0-A910-M2?

The airbag control unit with part number 77960-3V0-A910-M2 is the central control module for the Supplemental Restraint System (SRS) in the first-generation Honda HR-V. It processes signals from crash sensors and, in the event of a collision, deploys the airbags and activates the seatbelt pretensioners.

As a core component of the passive safety system, this control unit continuously monitors all connected SRS components, including front and side airbags, seatbelt pretensioners, as well as their respective sensors and wiring harnesses.

The unit ensures that the entire system operates correctly and reliably when needed. Its proper functioning is essential for occupant safety and is indicated by a steadily illuminated warning light whenever a fault occurs.

Why does control unit 77960-3V0-A910-M2 fail?

The most common cause of failure for control unit 77960-3V0-A910-M2 is the storage of crash data after an accident, which locks the device. Other defects arise from electronic issues such as broken wires, faulty wiring to SRS components, or loose connectors.

Following a collision—even minor ones—the control unit permanently writes crash data into its internal memory. This lock serves as a safety measure, preventing reuse until the data has been professionally cleared.

In addition to stored crash data, purely electronic faults can also impair functionality. Peripheral problems—such as interrupted or damaged wiring—often result in the control unit reporting errors, even if its internal electronics remain intact.

Defective or vibration‑induced loosened connectors on the control unit itself or on attached SRS components are another frequent source of trouble, requiring precise diagnosis using specialized equipment.

How do you recognize a defect in 77960-3V0-A910-M2?

A defect in airbag control unit 77960-3V0-A910-M2 primarily manifests as a constantly illuminated airbag warning light (SRS lamp) in the instrument cluster. Often, the control unit’s fault memory cannot be read via a diagnostic tool, or specific internal error codes appear.

The clearest indication of a problem in the restraint system is the activated SRS warning light on the dashboard. It alerts the driver that the airbag system is not functioning properly and may fail to deploy in the event of a crash.

During workshop diagnostics, communication with the control unit may become impossible. The diagnostic tool receives no response, suggesting a serious internal malfunction.

In other cases, error codes are retrieved that directly point to an internal fault within the control unit or to stored crash data, confirming the need for repair or reset.

In which vehicles is control unit 77960-3V0-A910-M2 installed?

The airbag control unit with part number 77960-3V0-A910-M2 is specifically designed for Honda vehicles. At Airbag24, this control unit is predominantly repaired for the first generation of the Honda HR-V, produced between 1998 and 2006.

At Airbag24, we have successfully matched and regularly repair this control unit for the following model:

Honda HR-V (1st Generation, model years 1998–2006)

How does the repair of 77960-3V0-A910-M2 proceed at Airbag24?

At Airbag24, control unit 77960-3V0-A910-M2 undergoes a thorough incoming inspection, during which the fault memory is read. Stored crash data is then professionally erased, and any electronic defects are rectified. Following a final test, the unit functions like new again.

After sending the removed control unit to Airbag24, the repair process begins with precise fault diagnosis. Using specialized diagnostic tools, the exact issue is identified—whether it’s a blockage caused by crash data or an electronic problem in the peripheral circuitry.

The core of the repair involves removing crash data from the control unit’s memory. If additional electronic faults are detected in wiring or connections, these are expertly repaired.

Once the repair is successfully completed, each control unit undergoes a comprehensive functional test to ensure proper operation. We provide 2 years' statutory liability for defects on both the repaired unit and the parts used.