Airbag control unit with part number P68046104AD

What does the airbag control unit P68046104AD do?

The airbag control unit P68046104AD is the central control unit of the restraint system for Jeep. It evaluates the signals from the crash sensors, determines in a crash which airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

The evaluation takes place in milliseconds, so no time is lost in an emergency. The unit indicates detected faults via the airbag warning light.

After a crash, the control unit stores crash data and locks itself. What this means for the failure is explained in the next section.

Why does the control unit P68046104AD fail?

Stored crash data is the most common cause, even if no airbag has deployed. A standard diagnostic tool cannot remove it. Other causes include aged components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

The crash data stays in the unit unless it is handled with the right method. That is why the memory is the first thing to check in the event of a failure. This also applies if the crash happened a long time ago.

The other triggers concern the electronics and their connections. Aged components and cold solder joints are just as common as corrosion on plugs. Voltage spikes arise, for example, from a weak battery or a jump start.

How can you tell that the P68046104AD is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. In addition, a fault message appears in the instrument cluster, and the diagnostic tool cannot connect to the control unit. The fault memory also cannot be cleared.

These signs mean that the system itself has detected a fault. In an emergency, airbags and seatbelt pretensioners may then fail to deploy. The warning light is therefore a clear signal that you should not overlook.

Which vehicles is the P68046104AD fitted in?

The control unit P68046104AD is fitted in these vehicles: Jeep Cherokee KK (2008-2012).

The details come from our data on this part number. The vehicles at a glance:

• Jeep Cherokee KK (2008-2012)

Compare the part number on the label of the removed unit with this page. This only makes sure that you have the right unit in front of you. Have the fault memory read out beforehand, because 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 5189278AA, 68025632AK, P04896129AF, P04896129AG, P56038973AE, P56038973AF.

How does the repair of the P68046104AD work?

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

Airbag24 tests the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. Processing at Airbag24 usually takes 3–4 working days. Your own 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 P68046104AD get to Airbag24?

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

The printed repair order belongs in the parcel. Pack the unit shockproof so that it arrives at Airbag24 undamaged.