Airbag control unit with part number 68402854AC

What does the airbag control unit 68402854AC do?

The airbag control unit 68402854AC carries out the monitoring and triggering of the restraint system (SRS) in the Jeep vehicle. Using the crash sensors it detects an impact and triggers the appropriate airbags and seatbelt pretensioners within milliseconds.

The control unit checks the system continuously and shows faults on the warning light in the instrument cluster.

After an accident the unit stores crash data and locks itself. The following sections describe what to do then.

Why does the control unit 68402854AC fail?

The most common cause is crash data from an accident that remains in the memory, even without airbags triggered. A normal diagnostic tool does not erase them. Further causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from weak batteries or jump starting.

They remain in the unit, because no ordinary diagnostic tool clears the memory.

The other causes lie mainly in the electronics and their connections. Solder joints can become brittle, and components age over time. Which of these applies is shown by the examination of the unit.

How can you tell that the 68402854AC is defective?

In case of a defect in control unit 68402854AC, the airbag warning light in the instrument cluster lights up, either permanently or intermittently. The diagnostic tool may then find no connection, and the fault memory cannot be erased.

Such a defect can mean that airbags and seatbelt pretensioners may not trigger in an emergency. That is why a prompt check is the right step.

An error message in the instrument cluster or a fault memory that cannot be erased is also part of the picture. Only reading out shows where the problem comes from.

Which vehicles is the 68402854AC fitted in?

The control unit 68402854AC is found in these vehicles: Jeep Compass MP (2016-2020) and MP Facelift (from 2020).

The vehicles individually:

• Jeep Compass MP (2016-2020)
• Jeep Compass MP Facelift (from 2020)

Compare the part number on the label of the removed unit with this page, so that you definitely have the right unit. Have the fault memory read before removal; only the result shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers A2C13501200.

How does the repair of the 68402854AC work?

First have the fault memory of the 68402854AC read and enclose the log. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the unit in well packed. Processing at Airbag24 generally takes 3–4 working days.

Airbag24 tests the unit on the test bench, replaces defective components and erases the stored crash data. After that a functional test follows, before your own, repaired 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 68402854AC get to Airbag24?

You send the 68402854AC as a parcel, or arrange a UPS collection for an extra charge. After the repair, Airbag24 returns the unit by UPS.

Enclose the printed repair order in the parcel and pack the unit shock-proof so that it arrives undamaged.