Airbag control unit with part number 68526663AC

What does the airbag control unit 68526663AC do?

The airbag control unit 68526663AC is the control unit of the restraint system for Chrysler. It evaluates the crash sensors, calculates within milliseconds in the event of an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously. After an accident it stores crash data and locks itself.

In operation the unit checks the connected components continuously. If there is a deviation, it creates an entry in the fault memory and reports the fault via the airbag warning light in the instrument cluster.

The crash data from an accident are a record of the event. They remain stored in the unit until they are removed by a suitable method.

Why does the control unit 68526663AC fail?

The most common cause is crash data stored after an accident, even if no airbag has triggered; a normal diagnostic tool cannot erase them. Further causes are aged electronic components, cold solder joints, moisture and corrosion on plug connections, as well as voltage spikes, for example from a weak battery or jump-starting.

Crash data is created as soon as the control unit registers an event, regardless of whether an airbag actually deploys. A standard diagnostic tool cannot reset it, which is why the entries stay in the system.

Aged electronic components, cold solder joints, moisture and corrosion on plug connections are the further causes. Voltage spikes, for example from a weak battery or a jump-start, can also affect the unit.

How can you tell that the 68526663AC is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and a fault message appears in the instrument cluster. The diagnostic tool cannot find the control unit, and a fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

• The airbag warning light in the instrument cluster lights up permanently or intermittently
• A fault message appears in the instrument cluster
• The diagnostic tool has no connection to the control unit
• A fault memory cannot be cleared

The warning light is the clearest indication the control unit gives. Do not ignore it, because it signals a detected fault.

If the diagnostic tool stays silent, the control unit itself is not always affected. A cable or a plug can also interrupt the connection, but this can only be clarified with a readout.

Which vehicles is the 68526663AC fitted in?

The airbag control unit 68526663AC is fitted in these vehicles: Chrysler Pacifica RU Facelift (from 2020) and RU (2016-2020). The part number only tells you which unit it is, not whether it is defective.

Here follows the list of vehicles that are recorded for this part number. Checking it against your own vehicle is worthwhile before removal.

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

Compare the part number on the label of the removed unit with this page. This confirms that it is the correct unit. Have the fault memory read out beforehand, because only the log shows WHETHER the control unit is defective or a plug or cable is the cause.

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 68526663AC work?

First have the fault memory read out and enclose the log, then disconnect the battery and only then remove the control unit. Then create a repair order online and send the unit in well packed. Airbag24 checks it, repairs defective components, erases stored crash data and carries out a function test.

Your first step is therefore the readout, because it documents the status. Then disconnect the battery and remove the control unit before creating the order.

In the repair order you enter the details of the unit. Pack the parcel so that the control unit cannot move.

Airbag24 examines the unit on the test bench and repairs defective components. Stored crash data is erased by Airbag24, followed by the function test. Processing at Airbag24 usually takes 3–4 working days, after which your own unit is returned 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 68526663AC get to Airbag24?

You send the control unit as a parcel to Airbag24 or book a UPS collection for an extra charge. After the repair, Airbag24 returns your own unit to you by UPS.

Place the printed repair order in the parcel and pack the control unit shockproof.