Airbag control unit with part number 56054076AB

What does the airbag control unit 56054076AB do?

The airbag control unit 56054076AB is the central control unit of the restraint system (SRS) for Dodge and Chrysler. It evaluates the signals from the crash sensors and decides in an accident, within milliseconds, which airbags and seatbelt pretensioners are triggered.

The unit also monitors the system outside of an accident. In the event of a fault, the airbag warning light in the instrument cluster comes on.

After an accident it stores crash data and locks itself. Nothing more about this lock needs to be said here.

Why does the control unit 56054076AB fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed, and a normal diagnostic tool cannot erase it. Other causes at a glance:

• aged electronic components,
• cold solder joints,
• moisture and corrosion on plug connectors,
• voltage spikes, for example from a weak battery or a jump start.

Crash data arises already from an impact that the sensors register. That is why checking is worthwhile even if no airbag has deployed.

How can you tell that the 56054076AB is defective?

A defect shows up through the airbag warning light in the instrument cluster, which stays on permanently or intermittently. Typical signs are also a fault message in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared.

• The warning light stays on or flashes.
• The diagnostic tool receives no reply from the control unit.
• The fault memory is occupied again after clearing.

If the system is faulty, airbags and seatbelt pretensioners may not trigger in an emergency. Do not ignore these signs.

Which vehicles is the 56054076AB fitted in?

According to our current data, this assignment applies to Dodge and Chrysler. The control unit 56054076AB is fitted in these vehicles: Dodge Durango 2nd generation (2003-2006) and 2nd generation Facelift (2006-2009); Chrysler Aspen HG (2006-2008).

The following list shows the vehicles that our data links to this number.

• Dodge Durango 2nd generation (2003-2006)
• Dodge Durango 2nd generation Facelift (2006-2009)
• Chrysler Aspen HG (2006-2008)

Compare the part number on the label of the removed unit with this page, which confirms that it is the right unit. Have the fault memory read out beforehand, because only this result shows whether the control unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 4606948AC, 56043319AB, 56043866AB, 56054076AD, P04896158AF.

How does the repair of the 56054076AB work?

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

At Airbag24 the unit is checked on the test bench, defective components are repaired, stored crash data is erased and a function test is carried out. Processing takes 3–4 working days as a rule.

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 56054076AB get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. The return shipment is likewise made by UPS.

The printed repair order belongs in the parcel. The control unit should be packed shockproof so that it arrives undamaged.