Airbag control unit with part number P68186647AC

What does the airbag control unit P68186647AC do?

The airbag control unit P68186647AC makes the triggering decision in the restraint system (SRS) of Jeep. It reads the crash sensors and in a crash determines within milliseconds which airbags and seatbelt pretensioners come into use.

It also monitors the system permanently. It reports faults found via the airbag warning light.

In a crash it writes crash data into its memory and locks itself afterwards.

Why does the control unit P68186647AC fail?

The most common cause on the P68186647AC is crash data from an accident, even if no airbag fired. A normal diagnostic tool cannot erase it. Other causes are ageing, cold solder joints, moisture and voltage spikes.

Older electronic components and cold solder joints are also among the possible causes.

Moisture and corrosion on plug connectors impair the contact, and voltage spikes, for example from a weak battery or a jump start, can stress components.

Which of the causes actually applies only the check shows, and the crash data is erased during the repair.

How can you tell that the P68186647AC is defective?

A defect on the P68186647AC shows up through the airbag warning light in the instrument cluster, through fault messages and through a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may therefore not fire.

The signs in detail:

• warning light: permanently on or intermittently lit
• fault message in the instrument cluster
• no connection between diagnostic tool and control unit
• fault memory cannot be cleared

The light alone is enough to make the condition visible.

Which vehicles is the P68186647AC fitted in?

The control unit P68186647AC is fitted in these vehicles: Jeep Patriot MK (2007-2010) and MK Facelift (2010-2016). The list shows which models have so far been assigned to this part number.

The known models are:

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

Comparing the part number on the label of the removed unit with this page makes sure it is the right unit. Reading out the fault memory, on the other hand, shows whether the control unit is defective or whether a plug or a cable is causing the fault.

For the same vehicles, we also repair control units with the part numbers 68232710AD, P68148039AB, P68186646AA, P68232716AC, P68232716AD.

How does the repair of the P68186647AC work?

First have the fault memory read out and enclose the log. Then disconnect the battery and remove the control unit P68186647AC. Processing at Airbag24 usually takes 3–4 working days.

Afterwards create a repair order online and pack the unit well before you send it in.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a functional test. Afterwards you receive your own unit back.

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 P68186647AC get to Airbag24?

The control unit P68186647AC goes to Airbag24 as a parcel; a UPS collection can be booked for an extra charge. UPS handles the return journey after the repair.

The printed repair order is in the parcel, and the unit must be packed shock-proof so that it arrives undamaged.