Airbag control unit with part number P68186643AB

What does the airbag control unit P68186643AB do?

The airbag control unit P68186643AB is the central electronics of the restraint system (SRS) in Jeep. It evaluates the crash sensors, selects in a collision the airbags and seatbelt pretensioners to be triggered, and monitors the system permanently.

If it detects a fault, it switches on the airbag warning light.

After an accident the control unit stores crash data and locks itself.

Why does the control unit P68186643AB fail?

Most often the cause lies in crash data stored after an accident, even if no airbag was triggered. A standard diagnostic tool cannot erase this data. Further causes are aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example in a weak battery or jump-starting.

Anyone who heard no bang can still have crash data in the memory.

The other factors concern the electronics themselves and their connections. Whether they apply can only be established by examining the unit.

How can you tell that the P68186643AB is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently; in addition there may be an error message, a missing contact with the diagnostic tool, or a fault memory that cannot be cleared. Then airbags and seatbelt pretensioners may not be able to trigger in an emergency.

The light is an unmistakable sign that something in the system is disturbed.

Even a brief illumination is reason enough to have the fault memory read out.

Which vehicles is the P68186643AB fitted in?

Which vehicles are affected you can read here. The control unit P68186643AB is fitted in these vehicles: Jeep Compass MK (2007-2010) and MK Facelift (2011-2016).

The list shows these vehicles:

• Jeep Compass MK (2007-2010)
• Jeep Compass MK Facelift (2011-2016)

On the one hand, compare the part number on the label of the removed unit with this page; this only ensures that it is the right unit. On the other hand, have the fault memory read out beforehand, because only that 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 P68186642AD.

How does the repair of the P68186643AB work?

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

Airbag24 first checks the unit on the test bench and replaces defective components. Processing usually takes 3–4 working days. Stored crash data are also erased by Airbag24, followed by a function test, and the unit goes back 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 P68186643AB get to Airbag24?

You send the control unit in as a parcel or book a UPS collection for an extra charge. Airbag24 returns it by UPS after the repair.

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