Airbag control unit with part number 68620844AB

What does the airbag control unit 68620844AB do?

The airbag control unit 68620844AB coordinates the restraint system of Jeep. It receives the signals from the crash sensors, selects the appropriate airbags and seatbelt pretensioners in an accident within milliseconds, and checks the entire system during operation.

During driving, the unit works unobtrusively in the background. If it finds a fault, it reports this to the driver via the airbag warning light in the instrument cluster.

If the vehicle has been in an accident, the unit creates crash data and then locks itself.

Why does the control unit 68620844AB fail?

The most common cause is an accident after which crash data was stored in the unit, even if no airbag was deployed. A standard diagnostic tool cannot erase this data. Other possible causes are:

• Ageing electronic components
• Cold solder joints
• Moisture and corrosion at plug connections
• Voltage spikes, for example from a weak battery or jump start

The crash data remains in the unit until it is removed during a repair. That is why a fault persists even after reading it out.

Which cause applies in the individual case is shown only by the fault memory log.

How can you tell that the 68620844AB is defective?

A defect shows itself when the airbag warning light in the instrument cluster comes on, a fault message appears there, the diagnostic tool has no connection to the control unit, or the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then not deploy in an emergency.

The warning light is the most important sign. It may stay on permanently or only light up now and then, and both call for the fault memory to be read out.

A missing connection to the diagnostic tool is not always the fault of the control unit. Plugs and cables can be the cause too, so the finding can only be narrowed down after testing.

Which vehicles is the 68620844AB fitted in?

The airbag control unit 68620844AB is fitted in these vehicles: Jeep Grand Cherokee WL (from 2021).

The following overview shows the vehicles recorded for this part number.

• Jeep Grand Cherokee WL (from 2021)

Compare the part number on the label of the removed unit with this page. That only ensures you have 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 cable is the cause.

How does the repair of the 68620844AB work?

First read out the fault memory and enclose the log. Then disconnect the battery, and only then remove the control unit. After that, create the repair order online and send the well-packed unit in.

At Airbag24, the unit is checked on the test bench, defective components are replaced, the crash data is deleted and a functional test is carried out. Afterwards your own unit goes back to you.

Testing, repair and functional test usually take 3–4 working days. 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 68620844AB get to Airbag24?

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

The printed repair order goes into the parcel, and the unit is packed shock-proof.