Airbag control unit with part number P56054193AC

What does the airbag control unit P56054193AC do?

In the Dodge vehicle, the airbag control unit P56054193AC manages the restraint system (SRS). It processes the signals from the impact sensors, selects the appropriate airbags and seatbelt pretensioners in a crash within milliseconds, and monitors the system without interruption.

Faulty states appear on the airbag warning light in the instrument cluster. After an accident, the unit stores crash data and locks itself.

The unit carries out these tasks quietly, without the driver having to intervene.

Why does the control unit P56054193AC fail?

Above all, it is due to crash data stored in the unit after an accident, even if no airbag has deployed. An ordinary diagnostic tool cannot erase it. Other possible causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or after a jump start.

The unit stores the data regardless of whether an airbag fires.

The other causes develop over a longer period. Ageing and moisture worsen connections, and electrical spikes stress the components.

How can you tell that the P56054193AC is defective?

The airbag warning light in the instrument cluster lights up permanently or only intermittently, a fault message may appear in the instrument cluster, the diagnostic tool cannot reach the control unit, and the fault memory cannot be cleared. Signs like these indicate a defect in the P56054193AC.

In an emergency, airbags and seatbelt pretensioners may then fail to deploy, even if the car behaves normally in everyday use.

The warning light therefore gives the actual warning, and it deserves attention.

Which vehicles is the P56054193AC fitted in?

The known assignment to this part number is as follows. The airbag control unit P56054193AC is fitted in these vehicles: Dodge Ram DS/DJ/D2 (2009-2018).

The list of vehicles for this number follows here:

• Dodge Ram DS/DJ/D2 (2009-2018)

Compare the part number on the label of the removed unit with this page to confirm it. This does not establish the cause. Having the fault memory read out beforehand shows whether the control unit is defective or whether a plug or cable is affected.

For the same vehicles, we also repair control units with the part numbers 0285015046, 56043128AC, 56043128AD, 68303217AA, 68303218AA, 68346712AA.

How does the repair of the P56054193AC work?

Have the fault memory read out and attach the log to the unit. Disconnect the battery before you remove the control unit. Create a repair order online and send the well-packed unit in.

Airbag24 examines the control unit on the test bench, replaces defective components and deletes the stored crash data. A function test follows, after which your own unit is returned to you.

Processing at Airbag24 usually takes 3–4 working days. This refers exclusively to checking, repairing and testing.

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 P56054193AC get to Airbag24?

You send the unit as a parcel, or you book a UPS collection for an extra charge. After the repair, UPS brings the control unit from Airbag24 back to you.

Put the printed repair order into the parcel. Make sure the unit is packed shockproof.