Airbag control unit with part number 5084001AD

What is the function of Airbag Control Unit 5084001AD?

The airbag control unit with part number 5084001AD is the central control module for the occupant safety system (SRS) in the Chrysler Sebring Convertible JR (2000–2007). It continuously analyzes data from crash sensors and is responsible for precisely and rapidly deploying airbags and seatbelt pretensioners in the event of a collision.

As the “brain” of the safety system, this module processes all relevant signals from acceleration and yaw rate sensors to distinguish an accident from everyday driving situations such as hard braking. It ensures the proper functioning of the entire system.

This control unit is also known under alternative part numbers 4602340AG, 56054106AA/AB/AC, or 56054107AD and is interchangeable across the corresponding vehicle models.

Why does control unit 5084001AD fail?

The most common cause of failure for control unit 5084001AD is the storage of crash data after an accident, which results in internal locking of the device. Other reasons include internal electronic faults due to component aging, water damage caused by moisture ingress, or voltage surges in the vehicle’s electrical system that can destroy sensitive components.

Following a collision—even minor ones—the control unit permanently writes crash data into its internal memory. This lockout mechanism ensures safety by preventing further use, but it can be reset through professional repair.

Internal hardware defects are another typical cause. Components such as capacitors or the microcontroller itself may fail, leading to total malfunction or communication issues.

External factors like moisture entering through body panel leaks, or voltage spikes caused by a faulty alternator or jump-start procedure, can damage the circuit traces and delicate electronic components on the PCB.

How do you recognize a fault in 5084001AD?

A defect in control unit 5084001AD primarily manifests as a constantly illuminated or flashing airbag warning light (SRS indicator) on the dashboard. Often, the control unit becomes unresponsive when connected to a diagnostic tool, or error codes such as B1000, 65535, or “Internal Error” appear—codes that cannot be cleared.

The most noticeable sign is the persistent SRS warning light that fails to turn off after starting the engine. This indicates that the entire airbag system is disabled and would not deploy in the event of a crash.

Another clear symptom is the lack of communication: the workshop cannot establish a connection between the diagnostic tool and the airbag control unit, making troubleshooting impossible. Error codes B1000 or 65535 specifically point to such an internal hardware fault.

The fault memory may also contain messages like “Control unit defective,” CAN bus errors, or warnings about insufficient supply voltage. These directly indicate a problem within the module itself, rather than external sensors.

In which models is control unit 5084001AD installed?

The airbag control unit with part number 5084001AD is specific to the Chrysler Sebring Convertible of the JR series, produced between 2000 and 2007. It is also compatible with several alternative part numbers that can be used in the same vehicles.

At Airbag24, we repair the control unit with part number 5084001AD and its associated replacement numbers for the following vehicle:

Chrysler Sebring Convertible (JR series, model years 2000–2007)

Our repair expertise extends to identical control units bearing alternative part numbers 4602340AG, 56054106AA, 56054106AB, 56054106AC, as well as 56054107AD.

How is the repair of 5084001AD performed professionally?

Professional repair begins with a detailed initial analysis to pinpoint the root cause of the issue—whether it’s stored crash data or a hardware defect. Defective components are then replaced at the component level, and the software is reset. A final test on a simulation test bench guarantees full functionality.

After submission to Airbag24, the control unit undergoes a comprehensive diagnosis. Technicians read the fault memory and internal data to accurately identify the defect—whether it’s a post-accident lockout or an electronic component failure.

Restoration takes place directly on the circuit board. Stored crash data is securely erased, and defective components such as the microcontroller, capacitors, or memory chips are expertly replaced with new, high-quality parts.

Finally, the functionality of the repaired control unit is simulated on a dedicated test bench. A comprehensive vehicle-system test is performed to ensure that the unit once again communicates flawlessly with all sensors and actuators. You receive a 12-month warranty on the repair.

What shipping options are available at Airbag24?

To send your defective control unit to Airbag24, you can either drop it off yourself free of charge or arrange a convenient UPS pickup at your preferred location. For the return shipment after repair, both free UPS Standard shipping and faster UPS Express shipping are available—both can optionally be arranged with cash-on-delivery.

To send your control unit to us, you have two convenient options. You can use the shipping label and drop off the package free of charge at any authorized collection point, or you can request the UPS pickup service, which will collect the package directly from your home or workshop.

After successful repair, we will ship the control unit back to you using free UPS Standard shipping, ensuring reliable and trackable delivery.

If speed is of the essence, you can opt for UPS Express shipping. Both Standard and Express shipping can, upon request, be combined with cash-on-delivery. Personal collection of the repaired unit at our premises is also possible.