Airbag control unit with part number P68186646AB

What does the airbag control unit P68186646AB do?

The airbag control unit P68186646AB is the SRS control unit for Jeep and controls the entire restraint system. It evaluates signals from the crash sensors and decides in an accident within milliseconds on the triggering of airbags and seatbelt pretensioners. After an accident it stores crash data and locks itself.

The unit works in the background and checks the connected components continuously. If it detects a fault, it reports it via the airbag warning light.

Why does the control unit P68186646AB fail?

The most common cause for the control unit P68186646AB is crash data stored after an accident, even if no airbag has triggered. An ordinary diagnostic tool cannot erase it. Further causes are aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

The crash data may stem from an event that happened some time ago.

The other causes have nothing to do with the accident. Aged components, cold solder joints and moisture in the plug connections gradually alter the signals until the unit no longer works cleanly. Voltage spikes arise, for example, with a weak battery or when connecting jump leads, and can stress the electronics.

How can you tell that the P68186646AB is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and an error message appears in the instrument cluster. The diagnostic tool finds no connection to the control unit P68186646AB, or the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then possibly not trigger in an emergency.

The light is the visible sign of a fault in the restraint system. If it appears, have the fault memory read out before you plan any further steps.

Which vehicles is the P68186646AB fitted in?

The part number is decisive for the assignment, not the brand Jeep alone. The control unit P68186646AB is fitted in these vehicles: Jeep Patriot MK (2007-2010) and MK Facelift (2010-2016).

The list below names the models that match this part number.

• Jeep Patriot MK (2007-2010)
• Jeep Patriot MK Facelift (2010-2016)

Compare the part number on the label of the removed unit with this page; this only shows that you have the right unit. Also have the fault memory read out beforehand, because only this log 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 68232710AD, P68148039AB, P68186646AA, P68232716AC, P68232716AD.

How does the repair of the P68186646AB work?

Have the fault memory of the control unit P68186646AB read out and attach the log, then disconnect the battery and only then remove the unit. Then create a repair order online and send in the well-packed unit. At Airbag24, checking, repairing and testing usually take 3–4 working days.

On the test bench at Airbag24 the unit is examined. Defective components are repaired, the crash data is erased and a function test is carried out. Afterwards your own unit comes 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 P68186646AB get to Airbag24?

Either you send the control unit P68186646AB as a parcel, or you book a UPS collection for an extra charge. The return after the repair is made by UPS.

Put the printed repair order into the parcel and pack the unit shockproof.