Airbag control unit with part number 68494458AB

What does the airbag control unit 68494458AB do?

As the airbag control unit for the restraint system (SRS) of Jeep, the 68494458AB evaluates the crash sensors. In an accident, it decides within milliseconds which airbags and seatbelt pretensioners are triggered.

Outside an accident, the unit monitors the system continuously. It shows faults via the airbag warning light.

If an accident occurs, it secures crash data and locks itself.

Why does the control unit 68494458AB fail?

The most common cause is crash data stored after an accident, even if no airbag has triggered; an ordinary diagnostic tool cannot erase it. Ageing electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes can also be causes.

Stored crash data therefore remains even when the airbags appear undamaged. Airbag24 erases it during the repair.

The other causes come from the electronics and the plug connections. Voltage spikes arise, for example, with a weak battery or a jump start.

How can you tell that the 68494458AB is defective?

A defect manifests itself through the airbag warning light, which stays on permanently or intermittently, through a fault message in the instrument cluster, through a diagnostic tool without connection to the control unit and through a fault memory that persists. In an emergency, airbags and seatbelt pretensioners may therefore fail to trigger.

Typical signs at a glance:

• Airbag warning light in the instrument cluster
• Fault message in the instrument cluster
• Diagnostic tool without connection to the control unit
• Fault memory that cannot be cleared

A warning light that indicates something is wrong should be taken seriously. Have the fault memory read out as soon as it comes on.

Which vehicles is the 68494458AB fitted in?

The 68494458AB is fitted in these vehicles: Jeep Wrangler JL (from 2018).

The list contains the vehicles stored for this part number.

• Jeep Wrangler JL (from 2018)

Compare the part number on the label of the removed unit with this page; this only confirms that you have the right unit. Also have the fault memory read out before removal. 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 68398609AB, P68003421AB.

How does the repair of the 68494458AB work?

First have the fault memory read out and enclose the log. Then disconnect the battery, only then remove the 68494458AB, and create a repair order online. Pack the unit well and send it in. Airbag24 generally needs 3–4 working days for checking, repairing and testing.

At Airbag24 the unit is checked, defective components are replaced, the crash data are erased and a function test follows. Afterwards your own, repaired 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 68494458AB get to Airbag24?

The control unit 68494458AB reaches Airbag24 as a parcel; alternatively, UPS collects it for an extra charge. After the repair, Airbag24 sends the 68494458AB back by UPS.

Repair order into the parcel, plus shock-resistant packaging.