Airbag control unit with part number P68186649AC

What does the airbag control unit P68186649AC do?

The airbag control unit P68186649AC brings together the evaluation within the restraint system (SRS) for Jeep. It receives the signals from the crash sensors and, in the event of an accident, determines within milliseconds which airbags and seatbelt pretensioners are triggered. After an accident it stores crash data and locks itself.

It monitors the system continuously, not only in a crash. If it detects a fault, it reports it via the airbag warning light, which is located in the instrument cluster.

Anyone who understands the unit can see more quickly why a fault impairs the protective function.

Why does the control unit P68186649AC fail?

With the P68186649AC, the most common cause is crash data stored after an accident, even if no airbag has deployed. An ordinary diagnostic tool cannot remove this data. Other causes are aged components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

The crash data sit in the unit's memory, and a standard readout does not remove them.

The other causes are deliberately worded in general terms: electronics age, solder joints break over time, and moisture or corrosion affect plug connectors. Voltage spikes, for example from jump-starting or a weak battery, also affect the unit.

How can you tell that the P68186649AC is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently if the P68186649AC has a fault. In addition, a fault message, a diagnostic tool without connection and a fault memory that cannot be cleared may appear.

A diagnostic tool that cannot establish a connection is already a finding in its own right, and it must not be ignored.

In an emergency, airbags and seatbelt pretensioners may then not trigger. Therefore have the finding checked promptly.

Which vehicles is the P68186649AC fitted in?

The allocation shows the affected vehicles. The control unit P68186649AC is fitted in these vehicles: Jeep Cherokee KK (2008-2012).

Here is the list of vehicles:

• Jeep Cherokee KK (2008-2012)

Use this page to first compare the part number on the label of the removed unit. This only ensures that it is the correct unit. Have the fault memory read out beforehand, because it shows whether the control unit is defective or whether a plug or cable is the cause.

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 P68186649AC work?

First have the fault memory read out, attach the log, then disconnect the battery, and only then remove the control unit P68186649AC. Then create a repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 examines the unit on the test bench, puts defective components right, deletes the stored crash data and carries out a function test. Afterwards your own 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 P68186649AC get to Airbag24?

You can send in the control unit P68186649AC as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

The printed repair order belongs in the parcel, and you pack the unit shock-resistant.