Airbag control unit with part number 56054077AG

What does the airbag control unit 56054077AG do?

The airbag control unit 56054077AG controls the restraint system (SRS) of Dodge. It processes the data from the crash sensors, triggers the appropriate airbags and seatbelt pretensioners in an accident, and checks the entire system during operation. After an accident, it stores crash data and locks itself.

The check runs constantly in the background, even though you notice nothing of it. If the unit detects a fault, it switches on the airbag warning light.

In everyday life nothing of this is noticeable as long as the light stays off.

Why does the control unit 56054077AG fail?

Stored crash data is the most common cause: it remains in the unit after an accident, even without an airbag being triggered, and an ordinary diagnostic tool does not touch it. Added to this are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes such as those from a weak battery or a jump start.

The crash data is a record from the moment of impact. It stays in memory until it is erased with suitable technology.

The other causes act on the electronics themselves. Solder joints can become brittle over time, and moisture causes contacts to corrode.

Voltage spikes occur when a battery is weakening or a vehicle is started with the help of a second vehicle.

How can you tell that the 56054077AG is defective?

A defect becomes apparent when the airbag warning light in the instrument cluster stays on permanently or intermittently, a fault message appears in the instrument cluster, the diagnostic tool cannot establish a connection to the control unit, or the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The warning light is the indicator you should watch when you get in, because it shows the state of the system.

Anyone who sees one of these displays should have the system checked promptly.

Which vehicles is the 56054077AG fitted in?

The control unit 56054077AG is fitted in these vehicles: Dodge Charger 6th generation (2006-2010).

The list of vehicles for this part number can be found here:

• Dodge Charger 6th generation (2006-2010)

A cross-check brings clarity: compare the part number on the label of the removed unit with this page so that you have the right unit. Have the fault memory read out beforehand. Only this result shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 04896097AE, 04896097AG, 04896098AD, 04896098AE, 04896098AF, 04896098AG.

How does the repair of the 56054077AG work?

Before you remove the unit, have the fault memory read out and attach the log. Then disconnect the battery and only then take the control unit out of the vehicle. Next, create the repair order online and pack the unit carefully for dispatch. Processing at Airbag24 usually takes 3–4 working days.

This sequence must be followed for safety reasons, so removal only begins once the battery is disconnected.

Airbag24 checks your unit on the test bench, repairs defective components, erases the stored crash data and carries out a function test. Afterwards Airbag24 sends your own unit back. Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 56054077AG get to Airbag24?

The unit reaches Airbag24 either as a parcel that you send yourself or via a UPS collection that you book for an extra charge. After the repair, Airbag24 sends it to you by UPS.

Pack the printed repair order into the parcel, and pack the unit so that it lies safe against shocks.