Airbag control unit with part number 68316753AB

What does the airbag control unit 68316753AB do?

As the airbag control unit, the 68316753AB forms the core of the restraint system (SRS) for Chrysler. It processes the signals from the crash sensors, decides in an accident within fractions of a second which airbags and seatbelt pretensioners fire, and reports faults via the airbag warning light.

The system is monitored continuously while the vehicle is being driven. Deviations found are stored in the fault memory, which a diagnostic tool can read out.

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

Why does the control unit 68316753AB fail?

The most common cause is stored crash data after an accident, even if no airbag has fired, and these cannot be erased with an ordinary diagnostic tool. In addition there are aged electronic components, cold solder joints, moisture with corrosion at plug connectors, and voltage spikes.

The crash data sit in the control unit itself and not in the wiring. That makes them a separate finding, alongside all other causes.

The other causes concern the electronics and their connections. Typically, solder joints give way over time and moisture attacks the contacts. Which cause is present only the examination of the unit shows.

How can you tell that the 68316753AB is defective?

The airbag warning light stays on permanently or intermittently, and an error message appears in the instrument cluster. The diagnostic tool cannot establish a connection to the control unit, and the fault memory cannot be erased.

In an emergency, airbags and seatbelt pretensioners may then be unable to trigger. The light should therefore be taken seriously, because it indicates the defect itself.

Which vehicles is the 68316753AB fitted in?

The allocation refers only to this part number. The airbag control unit 68316753AB is installed in these vehicles: Chrysler 300 LD (2011-2023).

The following list shows the vehicles on record for this part number.

• Chrysler 300 LD (2011-2023)

Compare the part number on the label of the removed unit with this page. This merely confirms that it is the right unit.

Read out the fault memory beforehand. Only the log shows whether the control unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 05081041AG, 05081042AD, 68297878AA, 68316752AB.

How does the repair of the 68316753AB work?

First have the fault memory read out, enclose the log and disconnect the battery. Then create a repair order online and send the unit in well packed. Airbag24 examines the unit, replaces defective components, erases the crash data and carries out a function test; this usually takes 3–4 working days.

The control unit is removed only after the battery has been disconnected. This order is prescribed for safety reasons.

The processing time refers to the work at Airbag24 alone.

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 68316753AB get to Airbag24?

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

Enclose the printed repair order and pack the unit shockproof.