Airbag control unit with part number 06722-SR2-305

What is the function of the airbag control unit 06722-SR2-305?

The airbag control unit 06722-SR2-305 is the central control module for the occupant protection system in the Honda Del Sol EH. It continuously monitors sensor data, evaluates it in the event of a collision, and controls the precise deployment of the airbags to ensure the safety of vehicle occupants.

As the brain of the passive safety system, this module constantly processes information from the crash sensors distributed throughout the vehicle. Its primary task is to accurately detect an accident situation and make the decision to activate the restraint systems within milliseconds.

After a crash, the control unit stores relevant crash data. This feature is crucial for analyzing the accident sequence but also results in locking the system to prevent unintended re‑deployment. A fully functional control unit is therefore essential for protecting occupants.

Why does the control unit 06722-SR-305 fail?

The most common cause of failure for the control unit 06722-SR2-305 is the storage of crash data after an accident, which triggers a system lock. In addition, aging-related electronic malfunctions or defects in internal components can lead to operational issues, making professional repair unavoidable.

Following a collision, the control unit is intentionally locked by the system. This safety mechanism prevents further driving with a potentially compromised airbag system. The crash data stored in its internal memory must be professionally erased so that the module can resume normal operation.

As the vehicle ages, electronic components inside the control unit may also fail—such as memory chips or other parts on the circuit board. These defects often manifest as communication failures or persistent error messages, even when no accident has occurred.

How do you recognize a defect in the control unit 06722-SR2-305?

A defective airbag control unit 06722-SR2-305 is primarily indicated by a permanently illuminated airbag warning light on the dashboard. Additionally, the control unit may become unresponsive to diagnostic tools, preventing communication with workshop software.

The most obvious symptom is the airbag warning light. Normally, it briefly illuminates upon starting the engine and then goes out. If the light remains on continuously, it signals a system fault, often originating from the control unit itself.

Another clear sign of a defect is when a specialized workshop’s diagnostic tool cannot establish a connection with the airbag control unit. The module fails to respond to queries, complicating fault diagnosis and often pointing directly to an internal malfunction.

In some cases, specific error messages displayed on the instrument cluster may also indicate a problem with the airbag system. It is strongly recommended to take these warnings seriously, as a failed control unit compromises occupant protection.

In which vehicles is the control unit 06722-SR2-305 installed?

The airbag control unit with part number 06722-SR2-305 was specifically developed for one model from Honda. It is used exclusively in the Honda Del Sol of the EH series, produced between 1992 and 1998. At Airbag24, we professionally repair this particular module.

Specifically, this control unit is intended for the following vehicle model:

Honda Del Sol EH (model years 1992–1998)

Is repairing the control unit 06722-SR2-305 worthwhile?

Repairing the control unit 06722-SR2-305 is a highly cost-effective alternative to purchasing a new unit. Compared to a new part, which often costs two to three times as much, refurbishment offers savings of 30% to 50%. Moreover, the repaired unit regains full functionality and comes with a 12-month warranty.

A new control unit is frequently difficult to obtain and comes with high costs—often several hundred euros, depending on the model. Repair not only saves money but is also more sustainable, as it reuses an existing component.

Following professional refurbishment, the control unit is fully operational again. All functions are restored, ensuring continued safety in the vehicle. Each repair is backed by a 12-month warranty.

How does the repair process work at Airbag24?

The repair process at Airbag24 for the control unit 06722-SR2-305 is designed for efficiency and safety. After removal and shipment of the unit, a detailed analysis is performed. Subsequently, crash data is erased, defective electronic components are replaced, and a final functional test confirms full operability.

First, the defective control unit should be removed by a qualified workshop. It is advisable to include a readout log or a detailed fault description with the device. Next, complete the repair form on the website and ship the unit securely packaged.

Upon arrival at Airbag24, technicians perform a thorough diagnosis. Depending on the fault pattern, stored crash data is erased, or defective electronic components on the circuit board are professionally replaced using only high-quality spare parts.

After successful repair, each control unit undergoes an extensive functional test on specialized test benches. Only when all functions have been fully restored is the unit prepared for return shipment.

What shipping options are available at Airbag24?

You can bring your control unit to Airbag24 in person, send it free of charge by post, or arrange a paid UPS pickup. For return shipping, you can choose between free standard UPS delivery and faster express options. Cash-on-delivery is also available for both shipping methods.

For outbound shipping, you have several choices: you can ship the package yourself or book a convenient UPS pickup at your preferred location for an additional fee. Of course, personal drop-off at our facility is also possible.

Return shipments are normally sent free of charge via standard UPS delivery. If you need faster service, you can opt for UPS Express shipping. Both shipping methods also offer cash-on-delivery as an option. Alternatively, the repaired control unit can be picked up directly from us.