Airbag control unit with part number P68185856AA

What does the airbag control unit P68185856AA do?

The airbag control unit P68185856AA coordinates the restraint system in Jeep. It evaluates the signals from the crash sensors, determines in an emergency which airbags and seatbelt pretensioners are triggered, and checks the system continuously.

If it detects a fault, it signals this via the airbag warning light. In the event of an accident, it also stores crash data and locks itself.

Why does the control unit P68185856AA fail?

The most common cause is crash data from an accident that remains even though no airbag has deployed. A usual diagnostic tool does not erase it. In addition, aged electronics, cold solder joints, moisture at plug connections and voltage spikes are possible causes.

Whether an airbag deployed in the accident makes no difference to the storage.

Electronics age, and solder joints can become cold over time. Moisture is also a factor, causing plug connections to corrode.

Voltage spikes are also among the causes, for example when the battery is weak or a jump start is given.

How can you tell that the P68185856AA is defective?

The airbag warning light in the instrument cluster lights up permanently or only from time to time, and an error message also appears there. In addition, the diagnostic tool cannot establish a connection to the control unit, and the fault memory remains. In an emergency, the airbags and seatbelt pretensioners may therefore not deploy.

This light is one of the signals that the control unit triggers itself. It is therefore not a matter of chance, but feedback from the system.

Only reading out the fault memory in a workshop will reveal whether the control unit or a component in its vicinity is affected.

Which vehicles is the P68185856AA fitted in?

The airbag control unit P68185856AA is used in these vehicles: Jeep Wrangler JK (2007-2018). It fits your vehicle if the part number matches.

Here you will find the list of vehicles for this part number:

• Jeep Wrangler JK (2007-2018)

You check the part number on the label of the removed unit; this only confirms that it is the correct unit. Before that, have the fault memory read out, because only this log shows whether the control unit itself is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 68398609AB, P68003421AB.

How does the repair of the P68185856AA work?

First comes the fault memory: you have it read out and enclose the log. Then you disconnect the battery and only then remove the control unit; online you create the repair order and send the unit in well packed. Airbag24 checks it on the test bench, repairs defective components, erases the crash data and carries out a function test; this usually takes 3–4 working days.

You disconnect the battery before removing the control unit; this sequence is one of the safety precautions.

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 P68185856AA get to Airbag24?

Either you send the unit as a parcel, or you book a UPS collection for an extra charge. The unit itself is also returned to you by UPS after processing.

Enclose the printed repair order with the parcel, and the unit must be packed shock-proof.