Airbag control unit with part number 06772-SR3-A80

What is the function of the airbag control unit 06772-SR3-A80?

The airbag control unit with part number 06772-SR3-A80 is the central control module of the occupant safety system (SRS), specifically designed for the Honda Del Sol EH model years 1992 to 1998. It processes signals from crash sensors and determines, within milliseconds, whether and when the airbags and seatbelt pretensioners should be deployed.

As the “brain” of the passive safety system, this module continuously monitors all connected components, including front and side airbags, seatbelt pretensioners, and their associated acceleration and pressure sensors. Its primary task is to reliably detect a collision and activate the restraint systems appropriately to provide optimal protection for occupants.

Therefore, proper functioning of the control unit is essential. If it fails or malfunctions, the vehicle’s entire passive safety system becomes inoperative, which can have serious consequences in the event of an accident.

Why does the 06772-SR3-A80 control unit fail?

The most common cause of failure for the 06772-SR3-A80 control unit is the storage of crash data after an accident, even minor collisions. Additional defects arise from internal electronic faults, communication issues, or external factors such as moisture and short circuits, making repair unavoidable.

After an airbag or seatbelt pretensioner deployment, the unit locks internally and permanently stores the crash data. This condition is intentionally designed by the manufacturer to prevent reuse without professional restoration. In such cases, conventional diagnostic tools cannot erase the stored data.

Internal hardware failures are another frequent source of problems. These may involve individual electronic components like processors, memory chips, or sensor modules. External factors—such as water damage due to body leaks, short circuits in the vehicle’s electrical system, or reverse polarity during jump-starting—can also lead to irreparable damage on the circuit board.

Problems in the vehicle’s CAN bus system, caused by corrosion or broken pins on connectors, can likewise impair the control unit’s functionality. In some instances, a similar part number, 06772-SS0-A80, appears, suggesting a variant or typographical error; however, the fault symptoms are often identical.

How do you recognize a defect in the 06772-SR3-A80?

A defect in the 06772-SR3-A80 control unit typically manifests as a permanently illuminated or flashing airbag warning light (SRS indicator) on the instrument cluster. Often, stored diagnostic trouble codes cannot be cleared, or communication between the diagnostic tool and the control unit has been lost.

The clearest sign is the active SRS warning light that fails to turn off after the engine starts. This indicates a serious system fault requiring immediate inspection.

During workshop diagnostics, specific fault codes—such as DTC codes like U1XXX, B1XXX, or messages indicating an internal control unit error—are frequently detected. A hallmark of a defective unit is that these codes persist even after repairing external components.

Another critical symptom is complete loss of communication. When attempting to access the module via OBD or TECH2 diagnostic equipment, the connection fails, rendering the control unit unresponsive.

In which vehicles is the 06772-SR3-A80 installed?

The airbag control unit with part number 06772-SR3-A80 was specifically developed for the Honda Del Sol model series EH. Airbag24 offers professional, reliable repairs for this particular model, restoring full functionality to the safety system.

At Airbag24, the 06772-SR3-A80 control unit is refurbished for the following model:

Honda Del Sol EH (model years 1992–1998)

How is the 06772-SR3-A80 professionally repaired?

At Airbag24, repairs follow a rigorous process: After a thorough incoming inspection using state-of-the-art testing equipment, faults are analyzed at the component level. Stored crash data is then erased, and defective components replaced. Following a final functional check, the unit is ready for reinstallation without further programming.

Upon receipt, the control unit undergoes precise electronic diagnostics to pinpoint the exact cause of the fault. This includes reading internal error codes and inspecting all relevant components.

The core of the repair involves safely removing crash data and expertly replacing faulty hardware components, such as sensors or memory modules. Thanks to this approach, costly replacement is unnecessary, making the repair a sustainable and economical solution.

Comprehensive final tests ensure that the control unit functions perfectly once again. After installation, the repaired module is ready for immediate use; no additional coding or programming in the vehicle is required. Each repair comes with 2 years' statutory liability for defects.