Airbag control unit with part number P04672404AC

What is the function of the airbag control unit P04672404AC?

The airbag control unit P04672404AC is the central control module of the occupant protection system in the Chrysler Sebring JS (2006–2010). As an original Chrysler OEM component, it processes signals from crash sensors to precisely deploy airbags and seatbelt pretensioners in the event of a collision, while also storing relevant crash data.

This control unit serves as the brain of the entire passive safety system. It continuously monitors all connected components, including sensors, airbags, and seatbelt pretensioners. Within milliseconds, based on data provided by acceleration sensors, it determines whether and which restraint systems need to be activated to provide optimal occupant protection.

A key function after a deployment event is to store crash data directly in the control unit’s memory. This stored data prevents further operation of the device and must be reset through professional repair to restore full functionality of the safety system.

What defects occur with P04672404AC?

Typical defects of the P04672404AC control unit include stored crash data following a collision, which precludes further use. Internal electronic faults are also common, often indicated by error codes such as 65 3 550, along with communication failures or damage caused by water ingress.

The most frequent reason for required repair is stored crash data. After an airbag deployment, the control unit locks itself to prevent improper reuse. This lock can only be lifted through specialized reprogramming.

Another widespread defect is an internal electronic failure. Such errors are typically logged in the fault memory under code 65 3 550 or similar manufacturer-specific messages, indicating a fault on the circuit board or one of the memory modules that cannot be easily cleared.

In addition, complete communication failure may occur, rendering the control unit inaccessible via the diagnostic interface. Causes range from electronic malfunctions to external factors like water damage, leading to corrosion and short circuits on the circuit board.

How do you recognize a defect in the P04672404AC control unit?

A defect in the P04672404AC control unit is primarily signaled by a permanently illuminated or intermittently flashing airbag warning light on the instrument cluster. Other clear indicators include non‑erasable fault codes in the diagnostic system and a complete loss of communication with the control unit.

The most obvious symptom for the driver is the active airbag warning light, which indicates a fault in the occupant protection system and clearly suggests that airbags might not deploy correctly—or at all—in the event of a crash.

Diagnostics performed at a workshop reveal specific error codes pointing to an “internal fault” within the control unit. A crucial feature is that these entries cannot be permanently erased using standard diagnostic tools and reappear immediately.

In severe cases, the diagnostic tool may fail to establish any connection with the airbag control unit. This total communication breakdown confirms a serious internal defect in the control module.

In which models is the P04672404AC control unit installed?

The OEM airbag control unit with part number P04672404AC was specifically developed by Chrysler for use in a particular vehicle generation. At Airbag24, we repair this control unit for the Chrysler Sebring JS model series produced between 2006 and 2010.

At Airbag24, we service part number P04672404AC, which is factory-installed in the following vehicle model:

Chrysler Sebring JS (2006–2010)

How does the repair of P04672404AC proceed at Airbag24?

After sending the removed control unit to Airbag24, experienced mechatronics technicians conduct a systematic analysis. The repair process includes erasing crash data, reprogramming the memory, and, if necessary, replacing defective components. Each repair comes with 2 years' statutory liability for defects.

The repair procedure at Airbag24 begins with precise diagnostics to identify the exact source of the fault—whether it involves stored crash data, a hardware defect on the circuit board, or another electronic issue.

Subsequently, the control unit is restored. In most cases, this entails professionally resetting and clearing the crash data, returning the device to its original factory condition. If the analysis reveals a component defect, the affected parts are expertly replaced.

Finally, each repaired control unit undergoes a comprehensive functional test to ensure proper operation. Repair is a cost-effective and sustainable alternative to expensive new purchases and is backed by 2 years’ statutory liability for defects.