Airbag control unit with part number 68358974AA

What does the airbag control unit 68358974AA do?

The airbag control unit 68358974AA is the central control unit of the restraint system (SRS) for Chrysler. It processes the crash sensor data, decides in an accident within milliseconds on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously. It reports faults via the airbag warning light.

During normal operation the unit checks its inputs and outputs continuously. If a deviation is detected, it stores it as a fault.

After an accident, the unit stores crash data and locks itself.

Why does the control unit 68358974AA fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. A normal diagnostic tool cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion, and voltage spikes, for example from a weak battery.

Crash data remains in the memory even if the vehicle drives on inconspicuously after the incident. Many owners are therefore surprised that an apparently minor incident has consequences.

The other causes act over a long period. Components age, solder joints can go cold, and moisture attacks plug connections. Voltage spikes when starting or during jump-starting are also part of this.

How can you tell that the 68358974AA is defective?

A defect in the 68358974AA shows itself through the airbag warning light in the instrument cluster, which stays on permanently or intermittently. In addition there are fault messages in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared.

• Airbag warning light in the instrument cluster on permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool cannot reach the control unit
• Fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may not deploy if there is a defect. The warning light makes this visible, so it should never be ignored.

Which vehicles is the 68358974AA fitted in?

The control unit 68358974AA is fitted in these vehicles: Chrysler Pacifica RU Facelift (from 2020) and RU (2016-2020).

Below you will find the vehicles for which this part number is recorded.

• 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 only ensures that it is the correct unit. Have the fault memory read beforehand. Only this result 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 68405565AB, 68405565AC, 68405567AC, 68405937AA, 68405939AA, 68480707AC.

How does the repair of the 68358974AA work?

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

Airbag24 tests the unit on the test bench, repairs defective components and carries out a functional test. Stored crash data is erased by Airbag24. Afterwards your own unit goes back to you.

The time covers solely the testing, repairing and checking at Airbag24.

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 68358974AA get to Airbag24?

You send the control unit 68358974AA as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Put the printed repair order in the parcel, and pack the unit shock-resistant.