Airbag control unit with part number P68186649AB

What does the airbag control unit P68186649AB do?

The unit P68186649AB is the airbag control unit for Jeep and controls the restraint system (SRS). It evaluates the crash sensors and determines in an accident which airbags and seatbelt pretensioners trigger. After an accident it stores crash data and locks itself.

The unit checks the system continuously and shows detected faults via the airbag warning light in the instrument cluster. In addition, it stores the fault data in the memory.

For it to work reliably in an accident, electronics, sensors and wiring must function together.

Why does the control unit P68186649AB fail?

Stored crash data on the P68186649AB is the most common cause, even if no airbag has fired. Added to this are ageing components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes in the vehicle electrics.

The crash data remains stored after an accident and cannot be removed with a normal diagnostic tool. At Airbag24 it is erased during the repair.

The remaining causes arise from ageing, moisture or fluctuations in voltage. Which of them applies only the test shows.

How can you tell that the P68186649AB is defective?

The airbag warning light in the instrument cluster is the most important signal of a defect in the P68186649AB. If it lights up permanently or intermittently, the airbags and seatbelt pretensioners may not be able to deploy in a crash.

The warning light reports the fault as soon as the system detects it. A fault message in the instrument cluster can also appear. The diagnostic tool gives hints too: if no connection to the control unit is established, or the fault memory stays full, that points to a defect.

Anyone who notices such signs should have the vehicle checked promptly. Only the test shows whether the control unit, a connector or a cable is affected.

Which vehicles is the P68186649AB fitted in?

The P68186649AB is fitted in these vehicles: Jeep Cherokee KK (2008-2012).

The list shows the vehicles recorded for this part number.

• Jeep Cherokee KK (2008-2012)

You make the label comparison on the removed unit to make sure it is the right unit. Also have the fault memory read out beforehand, because only the result shows whether the control unit is defective or whether a connector or cable is causing the fault.

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 P68186649AB work?

You have the fault memory read out, attach the log and disconnect the battery; only then remove the P68186649AB. Then create a repair order online and pack the unit carefully.

Airbag24 tests the unit on the test bench, repairs defective components, erases the stored crash data and carries out a function test. Afterwards the unit comes back to you.

For this work at Airbag24 you should allow 3–4 working days as a rule.

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 P68186649AB get to Airbag24?

You send the P68186649AB as a parcel, or you book a UPS collection for an extra charge. Airbag24 sends the unit back by UPS after the repair.

Pack the control unit shock-proof and put the printed repair order into the parcel.