Airbag control unit with part number 04602430AF

What is the function of the airbag control unit 04602430AF?

The airbag control unit with part number 04602430AF is the central control module of the occupant restraint system (SRS) in the Chrysler 300M. It processes signals from crash sensors to precisely deploy airbags and seatbelt pretensioners at the right moment during a collision, thereby ensuring the safety of vehicle occupants.

As the “brain” of the restraint system, this module continuously monitors all connected components, such as impact sensors, airbag modules, and seatbelt pretensioners. It constantly analyzes data on vehicle acceleration and deceleration to reliably detect a collision.

In the event of an accident, the control unit makes split-second decisions about which restraint systems need to be activated. At the same time, it stores relevant incident data—known as crash data—in its internal memory.

Why does the control unit 04602430AF fail?

The most common causes of failure for the control unit 04602430AF are stored crash data following a collision, which locks the system, as well as internal electronic defects on the circuit board. These hardware malfunctions often result in communication issues and persistent error codes such as B1000.

A primary, manufacturer‑intended reason for failure is the storage of crash data. After a collision in which airbags have deployed, the control unit self‑locks for safety reasons. This hardware lock prevents the vehicle from being operated with a potentially compromised system. The system is then deactivated and must undergo repair.

In addition, internal electronic faults may occur. Defects in components such as processors, memory chips, or capacitors on the circuit board can lead to malfunctions. Such failures often manifest as the internal error code B1000 or specific errors indicating problems with side‑airbag sensors that cannot be cleared.

This control unit is also known under equivalent part numbers 04602430AE, 285001367, 343278, and 04896371AA, which are functionally identical and may exhibit similar fault patterns.

How do you recognize a defect in the 04602430AF?

A defective 04602430AF control unit typically shows up as a permanently illuminated or flashing SRS warning light on the instrument cluster. Another clear indication is the lack of communication with diagnostic tools, making it impossible to read or clear error codes.

The most obvious symptom is the airbag warning light (SRS lamp), which fails to turn off after the engine starts. This indicates a serious fault in the safety system and means that the airbags will not deploy in the event of a collision.

Often, a workshop using its diagnostic equipment cannot establish a connection to the airbag control unit. The module does not respond to requests, preventing accurate fault analysis. This points to a severe internal hardware defect.

If diagnostics are successful, error codes such as B1000 (internal control unit error) or specific errors related to the driver’s or side airbags are frequently displayed. A typical feature of the defect is that these error codes cannot be permanently cleared and reappear immediately.

In which vehicles is the 04602430AF control unit installed?

The airbag control unit 04602430AF was specifically designed for various versions of the Chrysler 300M from the LR series. It can be found in both early models and the revised facelift version, allowing for precise identification.

At Airbag24, we repair the control unit with part number 04602430AF, as well as its equivalent numbers, for the following specific vehicle models:

Chrysler 300M (LR series) manufactured between 1998 and 2001

Chrysler 300M (LR series facelift) manufactured between 2001 and 2004

How does the repair process work at Airbag24?

The repair process at Airbag24 is designed to quickly and reliably restore full functionality. After submitting the removed unit, a professional analysis is performed, followed by component‑level repairs and a final functional test before return shipping.

Once you’ve created an online repair order, send your removed control unit along with a postage label provided by us. Please include a description of the fault and, if available, the diagnostic report.

Upon receipt, our mechatronics technicians conduct a systematic inspection. They examine the device for external damage such as moisture or previous improper repair attempts and read out the fault memory to pinpoint the exact cause.

Electronic repair includes safely erasing stored crash data and replacing defective electronic components on the circuit board. Following the repair, the full functionality of the control unit is verified through rigorous testing. We provide 2 years' statutory liability for defects on all repairs.