Airbag control unit with part number P56054193AB

What does the airbag control unit P56054193AB do?

The airbag control unit P56054193AB controls the restraint system (SRS) of Dodge. It reads the crash sensors, decides within milliseconds in an emergency whether to trigger the airbags and seatbelt pretensioners, and checks the system continuously. It reports detected faults via the airbag warning light.

After an accident the unit stores crash data and then locks itself.

The monitoring runs in the background while the vehicle is in operation and goes unnoticed in everyday use.

Why does the control unit P56054193AB fail?

Stored crash data from an accident is the most common cause of the control unit P56054193AB failing, even if no airbag was triggered. A normal diagnostic tool cannot erase it. Other causes are aged components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

The data remains in the unit until it is erased. Aged electronic components, cold solder joints as well as moisture and corrosion on plug connections can also cause the fault.

Voltage spikes, for example from a weak battery or from a jump start, put additional strain on the electronics.

How can you tell that the P56054193AB is defective?

On the control unit P56054193AB you recognise a defect by the airbag warning light, which stays on permanently or intermittently, by a fault message in the instrument cluster, by a missing connection of the diagnostic tool or by a fault memory that cannot be cleared. In an emergency the airbags and seatbelt pretensioners may then fail to deploy.

The signs at a glance:

• Airbag warning light on permanently or intermittently
• Fault message in the instrument cluster
• No connection of the diagnostic tool to the control unit
• Fault memory cannot be cleared

The light reports the fault itself, so a look at the instrument cluster is enough as a first check.

Which vehicles is the P56054193AB fitted in?

The control unit P56054193AB is fitted in these vehicles: Dodge Ram DS/DJ/D2 (2009-2018).

The vehicles individually:

• Dodge Ram DS/DJ/D2 (2009-2018)

Compare the part number on the label of the removed unit with this page. This only makes sure that you have the right unit. Have the fault memory read out first: only this result shows whether the control unit is defective or a connector or cable is the cause.

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 P56054193AB work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the control unit P56054193AB. Next, create a repair order online and send the well-packed unit in.

Airbag24 examines the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. Processing usually takes 3–4 working days.

The unit is then returned to you. 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 P56054193AB get to Airbag24?

You can send the control unit P56054193AB in as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 returns it to you by UPS.

The printed repair order goes in the parcel; pack the unit shockproof.