Airbag control unit with part number 68477688AB

What does the airbag control unit 68477688AB do?

The airbag control unit 68477688AB coordinates the restraint system (SRS) at Jeep. It reads the crash sensors, assesses in a collision which airbags and seatbelt pretensioners to trigger, and monitors all components in between without interruption.

If a fault occurs, the unit stores it and shows it via the airbag warning light in the instrument cluster.

If an accident has happened, the unit records crash data and locks itself.

Why does the control unit 68477688AB fail?

Crash data recorded on the 68477688AB after an accident is regarded as the most common cause, even if no airbag has deployed. Aged components, corrosion at the connectors and voltage spikes are added to that.

Further causes at a glance:

• aged components in the electronics
• corrosion and moisture at the plug connections
• voltage spikes in the vehicle electrical system
• cold solder joints

Crash data cannot be erased with a normal diagnostic tool. Which cause applies to your unit is shown by the evaluation of the fault memory.

How can you tell that the 68477688AB is defective?

The airbag warning light in the instrument cluster lights up on the 68477688AB permanently or intermittently, and a fault message appears in the instrument cluster. In addition, the diagnostic tool gets no connection to the control unit, and the fault memory cannot be cleared.

In an emergency, the airbags and seatbelt pretensioners may then fail to deploy. Such a warning therefore needs a prompt check.

From the outside it is not possible to see what the fault is caused by. Whether the control unit itself or a connection is affected only becomes clear when the fault memory is read out.

Which vehicles is the 68477688AB fitted in?

The 68477688AB is fitted in these vehicles: Jeep Wrangler JL (from 2018).

The overview below shows the vehicles for which the part number applies.

• Jeep Wrangler JL (from 2018)

Compare the part number on the label of the removed unit with this page. This only ensures that it is the correct unit. Also have the fault memory read out, because only this log shows whether the control unit itself is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 68398609AB, P68003421AB.

How does the repair of the 68477688AB work?

First the fault memory is read out and the log is attached; then the battery is disconnected and the control unit 68477688AB is removed. Only after that do you create the repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 carries out the check on the test bench, repairs defective components, erases the stored crash data and tests the function. After that the unit goes back 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 68477688AB get to Airbag24?

You can send the control unit 68477688AB as a parcel, or book a UPS collection for an extra charge. The return journey after the repair is made by UPS.

The printed repair order goes into the parcel, and the unit is packed shock-proof.