Airbag control unit with part number P56054853AD

What does the airbag control unit P56054853AD do?

The airbag control unit P56054853AD belongs to the restraint system (SRS) of Jeep. It evaluates the crash sensors, decides in an accident within milliseconds on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously.

It reports any faults it finds via the airbag warning light. After an accident, it stores crash data and locks itself.

Why does the control unit P56054853AD fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Other causes are aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes, for example from a weak battery.

Crash data cannot be erased with an ordinary diagnostic tool, so reading out alone is not enough.

The other causes develop over time. Moisture and corrosion disturb contacts, solder joints can go cold, and voltage spikes stress components.

How can you tell that the P56054853AD is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. In addition there is a fault message in the instrument cluster, no connection from the diagnostic tool to the control unit, and a fault memory that cannot be cleared.

The warning light is the vehicle's direct indication of a fault. In an emergency, the airbags and seatbelt pretensioners may fail to deploy, so please have the finding examined promptly.

Which vehicles is the P56054853AD fitted in?

First compare your vehicle documents. The control unit P56054853AD is fitted in these vehicles: Jeep Cherokee KK (2008-2012).

The following list shows the vehicles that Airbag24 has assigned to this part number.

• Jeep Cherokee KK (2008-2012)

Compare the part number on the label of the removed unit with this page. That way you know you have the right unit, but this comparison tells you nothing more. Also have the fault memory read out beforehand, because this log 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 5189278AA, 68025632AK, P04896129AF, P04896129AG, P56038973AE, P56038973AF.

How does the repair of the P56054853AD work?

First have the fault memory read out and attach the log, then disconnect the battery and remove the control unit. Afterwards create a repair order online and send in the unit. Airbag24 checks, repairs and tests it within 3–4 working days as a rule.

The sequence protects you when working on the airbag system, so please keep to it. Pack the unit securely afterwards.

At Airbag24, the unit is checked on the test bench, defective components are replaced, stored crash data is deleted, and a function test is carried out. Afterwards your own unit is 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 P56054853AD get to Airbag24?

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

The printed repair order belongs in the parcel. Pack the unit shockproof so that it arrives undamaged.