Airbag control unit with part number 56043195AT

What is the function of the airbag control unit 56043195AT?

The airbag control unit 56043195AT is the central control module for the occupant restraint system (SRS) in vehicles such as the Dodge Magnum LX. It processes signals from crash sensors to precisely deploy airbags and seatbelt pretensioners at the right moment during a collision, making it a safety-critical component.

Technically speaking, this module continuously monitors all connected components of the airbag system. These include impact sensors located at the front and sides of the vehicle, seat occupancy detection, seatbelt pretensioners, and individual airbag modules. In the event of a collision exceeding predefined thresholds, the control unit sends ignition pulses to the corresponding pyrotechnic charges.

After an activation event, the device permanently stores so‑called crash data in its internal memory. This storage locks the control unit’s functionality and causes the SRS warning light to remain illuminated, necessitating repair or replacement.

What defects occur in 56043195AT?

The most common causes of failure for the control unit 56043195AT are stored crash data following an accident that locks the module, as well as internal hardware faults. The latter often manifest as error codes such as “195” and can result from defective electronic components, damaged circuit traces, or corrosion.

A key reason for repair is the retention of accident data. Even after a minor collision where the airbags deployed, the module becomes locked and non‑functional. The SRS warning light stays on, and the system is disabled. An electronic reset clears these records and restores full functionality.

Internal hardware defects represent another frequent source of failure. Overvoltage in the vehicle’s electrical system, water ingress, or age‑related corrosion can damage passive components like capacitors and resistors. Broken solder joints or circuit traces on the PCB, along with damaged connectors, also lead to malfunctions or complete system failure.

This control unit belongs to a family of modules. Part numbers such as 56043195AZ, 56043195AX, 56043195AS, 56043195AR, 56043195AP, or 5081042AG are often technically compatible and exhibit similar fault patterns.

How do you recognize a defect in the control unit 56043195AT?

A defect in the airbag control unit 56043195AT typically manifests unmistakably through a persistently illuminated airbag or SRS warning light on the instrument cluster. Additionally, it is often impossible to access the control unit via diagnostic equipment, or specific internal error codes are displayed.

The primary and most obvious symptom is the active airbag warning light. It does not extinguish after starting the vehicle, indicating that the entire restraint system is disabled and offers no protection in the event of a crash.

Another clear sign is a communication failure during diagnostics. When a workshop attempts to read the fault memory, the SRS module no longer responds. Alternatively, error codes such as “195” (internal control unit error) may appear, directly pointing to a defect within the module itself.

In which vehicles is the control unit 56043195AT installed?

The airbag control unit with part number 56043195AT, along with its compatible variants, is specifically designed for vehicles manufactured by Dodge. It is primarily used in the Dodge Magnum LX model series produced between 2004 and 2008.

At Airbag24, we repair part number 56043195AT for the following model:

Dodge Magnum LX (2004–2008)

How does the repair of 56043195AT proceed at Airbag24?

The repair process begins with the professional removal and shipment of the defective control unit. At Airbag24, the module undergoes a thorough electronic analysis to identify the exact cause of the fault. Defective components are then replaced, crash data is cleared, and a comprehensive final inspection is performed. Each repair comes with 2 years' statutory liability for defects.

For safety reasons, the vehicle battery should be disconnected before removal. After disassembly, the module is securely packaged and sent to us.

Upon receipt at Airbag24, a detailed diagnosis follows. This includes a visual inspection for physical damage such as corrosion or burnt components, as well as reading the internal fault memory. Based on this analysis, repairs are carried out, which may involve replacing faulty electronic parts, repairing circuit traces, or professionally erasing stored crash data.

Finally, each repaired control unit undergoes a functional test. We verify proper communication with vehicle-specific diagnostic systems to ensure that, after reinstallation, all faults have been resolved and the SRS warning light has gone off.