Airbag control unit with part number 68437723AB

What does the airbag control unit 68437723AB do?

The airbag control unit 68437723AB is the central control unit of the restraint system (SRS) for Jeep. It processes the measurement values from the crash sensors, decides within milliseconds in an accident on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously.

It reports faults of the system via the airbag warning light. After an accident it stores crash data and locks itself.

Sensors and seatbelt pretensioners are connected by cables to the control unit, which checks their status continuously.

Why does the control unit 68437723AB fail?

On the 68437723AB, stored crash data from an accident is the most common cause, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes such as those from a weak battery or jump-starting are also possible causes.

Crash data remains in the memory even when the vehicle looks undamaged after the accident. For this reason a failure also becomes noticeable when nothing can be seen on the vehicle.

The other causes concern the electronics themselves or their connections.

How can you tell that the 68437723AB is defective?

A defect shows up on the airbag warning light in the instrument cluster, on a fault message in the instrument cluster, through the diagnostic tool having no connection, and through a fault memory that cannot be cleared. In that case airbags and seatbelt pretensioners may not trigger in an emergency.

Typical signs at a glance:

• Airbag warning light in the instrument cluster stays on permanently
• Airbag warning light comes on only intermittently
• Fault message in the instrument cluster
• Diagnostic tool does not establish a connection to the control unit
• Fault memory cannot be cleared

Which vehicles is the 68437723AB fitted in?

The airbag control unit 68437723AB is fitted in these vehicles: Jeep Wrangler JL (from 2018).

The vehicles in detail:

• Jeep Wrangler JL (from 2018)

Compare the part number on the label of the removed unit with this page. That only ensures that you have the correct unit. Also have the fault memory read out beforehand, because only that 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 68437723AB work?

Processing at Airbag24 usually takes 3–4 working days. First read out the fault memory and enclose the log, then disconnect the battery and only then remove the control unit 68437723AB. Next, create a repair order online and send the unit in well packed.

Airbag24 tests the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. The unit then 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 68437723AB get to Airbag24?

You send the unit in as a parcel, or you book a UPS collection for an extra charge. After the repair Airbag24 returns the control unit 68437723AB by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof.