Airbag control unit with part number 68211617AC

What does the airbag control unit 68211617AC do?

The airbag control unit 68211617AC forms the central switching unit of the SRS restraint system for Chrysler. It reads the crash sensors and determines within a few milliseconds in an impact which airbags and seatbelt pretensioners are to be activated.

In operation the unit checks the connected components without pause. If it finds a fault, the airbag warning light in the instrument cluster comes on.

If an accident is registered, the control unit writes crash data into its memory and then locks itself. More on this in the following sections.

Why does the control unit 68211617AC fail?

The most common cause is crash data from an accident that remained in the memory, even without an airbag being triggered. An ordinary diagnostic tool does not erase them. Aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump starting, come on top of this.

The entry is retained regardless of how the vehicle runs afterwards.

The other causes are of a more general nature. Electronics age, solder joints can go cold, and moisture and rust affect the plugs. Voltage spikes from the on-board electrics also belong here.

How can you tell that the 68211617AC is defective?

The airbag warning light in the instrument cluster indicates the defect by lighting up, either continuously or at intervals. Also present are an error message in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be cleared if control unit 68211617AC is defective.

While the light is on, airbags and seatbelt pretensioners may not be able to trigger in an emergency. A prompt check is therefore advisable.

If no connection is established when reading out, this may be due to the control unit, but need not be.

Which vehicles is the 68211617AC fitted in?

According to our records, control unit 68211617AC is fitted in these vehicles: Chrysler Pacifica RU Facelift (from 2020) and RU (2016-2020).

The overview shows the vehicles that we have assigned to this number.

• Chrysler Pacifica RU Facelift (from 2020)
• Chrysler Pacifica RU (2016-2020)

Comparing the part number on the label of the removed unit with this page only shows that it is the right unit. The cause is established only by the fault memory: have it read before removal, then it shows whether the control unit is defective or whether a plug or cable is affected.

For the same vehicles, we also repair control units with the part numbers 68405565AB, 68405565AC, 68405567AC, 68405937AA, 68405939AA, 68480707AC.

How does the repair of the 68211617AC work?

First have the fault memory read and enclose the log. Then disconnect the battery, remove control unit 68211617AC, create a repair order online and send the unit well packed; Airbag24 tests it on the test bench, replaces defective components, erases stored crash data and carries out a functional test.

You should generally expect 3–4 working days for processing by us.

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 68211617AC get to Airbag24?

You send control unit 68211617AC to us as a parcel, or you arrange a UPS collection for an extra charge. The return after repair likewise follows by UPS.

Enclose the printed repair order and pack the unit with shock-proof packaging.