Airbag control unit with part number 68398611AB

What does the airbag control unit 68398611AB do?

The airbag control unit 68398611AB manages the restraint system (SRS) of Jeep and is therefore responsible for triggering airbags and seatbelt pretensioners. It evaluates the sensor signals within milliseconds. After an accident it stores crash data and locks itself.

Monitoring continues without interruption during operation, so changes to the system are noticed quickly.

The unit reports faults via the airbag warning light, which is located in the instrument cluster.

Why does the control unit 68398611AB fail?

On the 68398611AB, the most common cause lies in crash data stored after an accident, even where no airbag has deployed. Ageing components, cold solder joints, moisture and voltage spikes are also to be considered.

Crash data stays in the memory because a standard diagnostic tool does not erase it. Airbag24 removes it during the repair.

The other causes concern electronics and connections, for example ageing components or moisture at the plugs. Voltage spikes arise, for example, from a weak battery or a jump start.

How can you tell that the 68398611AB is defective?

The airbag warning light in the instrument cluster indicates faults on the 68398611AB, either continuously or intermittently. Fault messages, a diagnostic tool that cannot reach the control unit, and a fault memory that cannot be erased are added to this.

While such a fault persists, airbags and seatbelt pretensioners may not trigger in an emergency.

The light is therefore not a hint that resolves itself, but a prompt for a check.

Which vehicles is the 68398611AB fitted in?

The airbag control unit 68398611AB is fitted in these vehicles: Jeep Wrangler JL (from 2018).

The following vehicles are recorded for this part number:

• Jeep Wrangler JL (from 2018)

Comparing the part number on the label of the removed unit with this page only ensures that it is the correct unit. Have the fault memory read out beforehand, as only the result 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 68398609AB, P68003421AB.

How does the repair of the 68398611AB work?

First have the fault memory read out and attach the log. Then disconnect the battery, remove the 68398611AB and create a repair order online.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. Your own unit is then returned to you.

Processing at Airbag24 usually takes 3–4 working days, and this time applies only to checking, repairing and testing.

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 68398611AB get to Airbag24?

You send the 68398611AB as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

Put the printed repair order into the parcel, and pack the unit shock-proof before it is on its way.