What is a Honda Prelude 3rd Gen airbag control module?
A Honda Prelude 3rd Gen airbag control unit is the central safety unit of the Supplemental Restraint System (SRS), which deploys the airbags and seatbelt pretensioners precisely and quickly in the event of a collision. It continuously monitors all relevant sensors, stores important crash data, and ensures the correct functioning of the occupant restraint systems, which is crucial for safety.
This module is specifically designed for the 3rd generation Honda Prelude (approx. 1987-1991) and processes signals from impact detectors.
After an accident, the device often needs to be reset or repaired because triggered modules are irreversible and store the crash data.
Why is the Honda Prelude 3rd Gen airbag control unit defective?
The Honda Prelude 3rd Gen airbag control unit can be defective due to internal components being damaged by aging, overvoltage, or an accident, leading to malfunctions and impairing safety functions. Often, stored crash data prevents the module from restarting after an airbag deployment, making a Honda Prelude 3rd Gen airbag control unit repair unavoidable.
An internal failure of the SRS module, often caused by electronic problems, prevents the correct diagnosis and function of the airbag system.
Saving a crash event also requires a reset or repair of the control unit, otherwise it will continue to be detected as "triggered" and the airbag warning light will remain active.
Common error codes for Honda Prelude 3rd Gen airbag control unit repair
During Honda Prelude 3rd Gen airbag control module repairs, specific error codes may occur that indicate direct problems with the control module, such as communication problems, internal defects, or stored crash data. These codes indicate that the airbag control module itself is malfunctioning, and in many cases, a repair of the module is necessary to restore full functionality of the SRS system.
- **B1000** → **Airbag control unit communication error** → Cause: Problem in the data transmission of the SDM (Supplemental Diagnostic Module).
- **B1193** → **Crash data stored in the control unit** → Cause: The control unit has registered a trigger event and is blocking further functions.
- **B1231** → **Crash event exceeded** → Cause: The threshold for a crash event was reached or exceeded and saved.
- **B1620 / B1670** → **Internal control unit error** → Cause: Internal hardware or software problems in the airbag control unit itself.
- **7-3 / 8-5** → **Internal failure of SRS unit (manufacturer-specific Honda)** → Cause: Specific internal hardware defects of the Honda SRS module.
- **B1499** → **Airbag control unit detects deployed airbag module (status)** → Cause: The control unit registers the status of a deployed airbag.
- **65535** → **Internal memory error - intermittent error** → Cause: Problems with the internal memory of the airbag control unit.
What part numbers are available for the Honda Prelude 3rd Gen airbag control unit repair?
For Honda Prelude 3rd Gen airbag control unit repair, OEM part number 77960-S30-A81 is the only confirmed and verified original manufacturer part number confirmed for this model. Other alternative or replacement part numbers from third-party suppliers are not documented for this specific airbag control unit, emphasizing the importance of the original part number.
The part number **77960-S30-A81** is a genuine Honda airbag control unit (SRS Airbag Computer Diagnostic Control Module) for the Honda Prelude, built around 1997, suitable for the 3rd generation.
This part number has been confirmed as compatible multiple times and is often used for a necessary Honda Prelude 3rd Gen airbag control unit repair, where VIN programming is often required after installation.
For accurate diagnosis and repair, please use this specific OEM part number to ensure compatibility and safety.
A reset service for modules with this part number enables reuse after a crash, providing a cost-effective alternative to purchasing a new module and helping to restore the vehicle's safety features.