Airbag control unit with part number 68400424AB

What does the airbag control unit 68400424AB do?

The airbag control unit 68400424AB regulates the restraint system (SRS) in Jeep vehicles. Using the crash sensors, it selects the airbags and seatbelt pretensioners to trigger in a collision, within milliseconds.

It monitors the system continuously and indicates faults via the airbag warning light.

After an accident the unit stores crash data and locks itself. Only the repair lifts this lock.

Why does the control unit 68400424AB fail?

Stored crash data from an accident is the most common cause of failure, even if no airbag has deployed. Aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes are also possible.

A normal diagnostic tool does not erase crash data; Airbag24 removes it as part of the repair.

Which of the other causes applies is only shown by the examination.

How can you tell that the 68400424AB is defective?

The fault shows up on the airbag warning light in the instrument cluster, which stays on permanently or intermittently, and in fault messages in the instrument cluster.

Further signs include:

• no connection to the diagnostic tool
• fault memory that cannot be cleared

In an emergency, airbags and seatbelt pretensioners may possibly not deploy. Take this indication seriously.

Which vehicles is the 68400424AB fitted in?

The 68400424AB is fitted in these vehicles: Jeep Wrangler JL (from 2018).

The vehicle assignment is shown in the following list:

• Jeep Wrangler JL (from 2018)

Comparing the part number on the label of the unit with this page only shows that it is the correct unit. Having the fault memory read out beforehand, however, 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 68400424AB work?

Have the fault memory read out and attach the log. Then disconnect the battery before removing the control unit 68400424AB. Next, create a repair order online and send the unit in well packed.

At Airbag24 the unit is checked, defective components are replaced, the crash data is deleted and a function test is carried out. Processing usually takes 3–4 working days. Afterwards your own unit is returned 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 68400424AB get to Airbag24?

You can send the unit 68400424AB in as a parcel or have it collected by UPS for an extra charge. Airbag24 sends it back to you by UPS after the repair.

Enclose the printed repair order and pack the control unit shockproof.