Airbag control unit with part number 04602258AF

What is the function of the Airbag Control Unit 04602258AF?

The Airbag Control Unit 04602258AF is a central control module of the Occupant Restraint System (SRS), developed as a Mopar OEM part specifically for Chrysler models such as the Sebring JS and the second-generation Stratus. Its primary task is to process sensor data in order to precisely deploy airbags and seatbelt pretensioners in the event of a crash.

As the brain of the passive safety system, this module continuously monitors signals from crash sensors—acceleration and pressure sensors—distributed throughout the vehicle. It analyzes this data in real time to determine the severity and nature of an impact.

Based on this analysis, the 04602258AF control unit decides within milliseconds which restraint systems need to be activated. It sends ignition pulses to the appropriate airbags (front, side, or head airbags) and seatbelt pretensioners to provide optimal occupant protection. At the same time, it stores all relevant event data in its internal fault memory.

Why does the 04602258AF control unit fail?

The most common cause of failure for the 04602258AF control unit is the storage of crash data after an accident, which the module locks for safety reasons. Other defects include internal hardware failures in electronic components or communication malfunctions that make repair unavoidable.

Following a collision—even a minor one—the control unit’s internal memory retains so‑called crash data. This entry is permanent and disables the entire airbag system, often signaled by error codes such as B1310. Clearing these data is not possible with standard workshop diagnostic tools.

A further typical cause is internal defects on the circuit board. These can include cold solder joints, faulty processors, defective memory chips (EEPROM), or broken traces. Such hardware issues frequently result in total failure or loss of communication with diagnostic equipment.

Occasionally, external factors like faulty wiring in the vehicle or damaged lines leading to SRS components can also impair functionality. Therefore, a professional diagnosis performed directly on the vehicle is crucial to definitively identify the control unit as the source of the problem. Technically similar control units, such as part number 04602258AG, may exhibit comparable defect patterns.

How do you recognize a defect in the 04602258AF?

A defect in the Airbag Control Unit 04602258AF primarily manifests as a permanently illuminated or flashing SRS airbag warning light on the instrument cluster. Additionally, error codes stored in the memory often cannot be cleared, or the control unit becomes inaccessible to diagnostic tools.

The clearest symptom is the active airbag warning light. It does not turn off after starting the vehicle, signaling a serious malfunction in the occupant restraint system. This means the airbags would not deploy in the event of a crash.

During a workshop diagnosis, it is often found that the control unit’s fault memory contains errors that cannot be erased. Especially after an accident, crash data remains stored, preventing reactivation of the system.

Another clear indication is the lack of communication. When a workshop attempts to read the control unit using a diagnostic tool, the connection fails. The module no longer responds to requests, making precise fault analysis on the vehicle impossible and pointing to an internal defect.

In which vehicles is the 04602258AF control unit installed?

The Airbag Control Unit with part number 04602258AF is a specific Chrysler original part, mainly used in the Chrysler Sebring JS series (2006–2010) and the second-generation Chrysler Stratus (2000–2006). At Airbag24, this module is professionally refurbished for the aforementioned models.

At Airbag24, we repair part number 04602258AF for the following Chrysler models:

- Chrysler Sebring JS (model years 2006–2010)

- Second-generation Chrysler Stratus (model years 2000–2006)

How does the repair of the 04602258AF proceed at Airbag24?

At Airbag24, the repair of the 04602258AF control unit follows a standardized process. Upon submission, a precise electronic diagnosis is performed to verify the fault. Depending on the defect, crash data are then cleared or faulty components on the circuit board are replaced before a final functional test concludes the repair.

Initially, it is ideal to conduct a diagnosis directly on the vehicle to confirm that the issue truly lies within the control unit. After removal, the device is securely packaged and sent to Airbag24. Please complete the repair request form on our website for this purpose.

In our workshop, specialized technicians perform an initial diagnostic. Depending on the fault pattern, stored crash data is reset using dedicated programming tools, or repairs are carried out at the component level. During this process, defective components such as processors, memory chips, or capacitors are professionally replaced.

Following successful repair, the control unit undergoes comprehensive testing to ensure full functionality. This repair represents a significantly more cost-effective alternative to purchasing a new unit, saving you up to 800 euros. We provide 2 years' statutory liability for defects on every repair.