Airbag control unit with part number 4848802AC

What is the function of the airbag control unit 4848802AC?

The airbag control unit with part number 4848802AC is a central safety module for second-generation Dodge Viper models. As an original Mopar control unit, it is responsible for monitoring and controlling the entire occupant restraint system, including triggering the airbags in the event of a crash.

As the brain of the passive safety system, this control unit continuously processes data from various crash sensors distributed throughout the vehicle. In the event of a collision, it analyzes incoming signals within milliseconds and determines whether and which restraint systems, such as the front airbags, need to be activated to provide optimal protection for occupants.

The proper functioning of the 4848802AC is therefore essential for vehicle safety. It ensures that airbags deploy only when required by the accident situation, preventing unintended deployments.

Why does the 4848802AC control unit fail?

The most common cause of failure for the 4848802AC control unit is the storage of crash data after an accident, which results in the module being locked. Other typical causes include water damage, various electronic malfunctions, loss of communication with the unit, or other internal hardware defects.

After a crash in which the airbags have deployed, so‑called crash data is permanently stored in the control unit’s memory. This is a manufacturer‑imposed safety measure that necessitates a full system check. The control unit is then locked and must be professionally reset to restore its functionality.

Additional failure causes are often environmental or age‑related. Water damage can lead to corrosion on the circuit board and short circuits, while general electronic malfunctions are caused by defective components such as capacitors or processors. These often manifest as “internal errors.”

A complete failure may also present as a lack of communication. In this case, the control unit becomes inaccessible to diagnostic tools. It is important to note that part number 4848802AC was later replaced by part number 4848802AE, which is compatible with Dodge Viper models from 1997–2002 (8.0L V10).

How do you recognize a defect in the 4848802AC?

A defect in the 4848802AC airbag control unit typically manifests as a constantly illuminated airbag warning light on the instrument panel. Additionally, the control unit may no longer be accessible via diagnostic equipment, making in‑vehicle fault diagnosis impossible.

The clearest symptom for the driver is the activated airbag indicator light (SRS light). It does not turn off after starting the vehicle, signaling a safety‑system error that should be checked immediately.

For the workshop, a typical sign is the absence of communication. If a technician attempts to access the airbag module using diagnostic equipment, the connection fails—indicating a severe internal defect in the control unit.

If communication is still possible, error codes are often read out, pointing to an “internal control unit error.” Such errors cannot be cleared and require repair of the module.

In which vehicles is the 4848802AC installed?

The Mopar control unit 4848802AC is specifically used in various variants of the second‑generation Dodge Viper (1996–2002), including the SR II and VX II models, as well as sportier trims like the ACR VX II, ACR ZB II, GTS ZB I, and GTS VX I.

At Airbag24, we repair the 4848802AC control unit for the following Dodge Viper models:

Dodge Viper 2nd Gen (1996–2002)

Dodge Viper SR II

Dodge Viper VX II

Dodge Viper ACR VX II

Dodge Viper ACR ZB II

Dodge Viper GTS ZB I

Dodge Viper GTS VX I

How does Airbag24 repair the 4848802AC?

At Airbag24, repairing the 4848802AC control unit follows a professional, systematic process. Upon receipt, the unit undergoes a comprehensive electronic analysis to identify the exact source of the fault. Stored crash data is then reset, and any defective components are expertly repaired.

After receiving the removed control unit, our technicians perform a detailed diagnosis on specialized test benches. This step is crucial for pinpointing the precise cause of the defect—whether it’s a purely data‑related issue following an accident or a deeper hardware problem.

The core of the repair involves restoring the control unit to factory settings by erasing the crash data. If further defects, such as water damage or faulty electronic components, are detected during the analysis, they will also be addressed as part of the restoration process.

Finally, each repaired control unit undergoes a thorough final inspection to ensure full functionality. We provide 2 years' statutory liability for defects on all repairs.