Airbag control unit with part number 56054067AC

What does the airbag control unit 56054067AC do?

The airbag control unit 56054067AC is the central control unit of the restraint system (SRS) for Dodge and Jeep. It evaluates the signals from the crash sensors, decides in an accident within the shortest possible time which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. If it detects a fault, it indicates this via the airbag warning light.

The unit works constantly in the background and compares the signals from the sensors with the expected values. It stores deviations in the fault memory so that a workshop can trace them later.

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

Why does the control unit 56054067AC fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot delete it. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump start. Airbag24 deletes the crash data during the repair.

Crash data remain in the memory after an accident, even if the vehicle appears unremarkable from the outside. An ordinary diagnostic tool cannot access these entries.

The other causes mainly concern the electronics. Aged components and cold solder joints lead to faults that show up only intermittently.

Moisture and corrosion at plug connections impair the contact, and voltage spikes additionally stress the circuitry.

How can you tell that the 56054067AC is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, and a fault message may appear in the display. The diagnostic tool finds no 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 clearest sign that the system has detected a fault. It lights up even when hardly anything is noticeable in everyday driving.

If the light flickers, have the fault memory read out. A fault that occurs only intermittently is still stored in the memory.

Which vehicles is the 56054067AC fitted in?

The control unit 56054067AC is fitted in these vehicles: Dodge Durango 3rd generation (2010-2014) and 3rd generation Facelift (from 2014); Jeep Grand Cherokee WK2 (2010-2013), WK2 1st Facelift (2013-2017) and WK2 2nd Facelift (2017-2021).

The list shows the vehicles in which the unit is installed according to the available information:

• Dodge Durango 3rd generation (2010-2014)
• Dodge Durango 3rd generation Facelift (from 2014)
• Jeep Grand Cherokee WK2 (2010-2013)
• Jeep Grand Cherokee WK2 1st Facelift (2013-2017)
• Jeep Grand Cherokee WK2 2nd Facelift (2017-2021)

Compare the part number on the label of the removed unit with this page, so that you are sure you have the right unit in front of you. Also have the fault memory read out, because only this shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 68025654AK, 68328922AB.

How does the repair of the 56054067AC work?

You first read out the fault memory and enclose the log. Then you disconnect the battery, remove the control unit, create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days; afterwards Airbag24 inspects the unit, repairs defective components, deletes stored crash data and carries out a function test.

The sequence serves your safety. The control unit may be removed only once the battery has been disconnected.

After the function test, your own unit is returned to you. The time of 3–4 working days relates exclusively to the work at Airbag24.

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 56054067AC get to Airbag24?

You send the unit in as a parcel or book UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

Enclose the printed repair order in the parcel and pack the control unit securely against shocks.