Airbag control unit with part number 68503581AC

What does the airbag control unit 68503581AC do?

As the central unit, the airbag control unit 68503581AC controls the restraint system (SRS) of Jeep. It processes the measured values from the crash sensors, decides on airbags and seatbelt pretensioners within milliseconds in an emergency, and monitors the system while driving.

A fault becomes visible through the airbag warning light in the instrument cluster. The electronics check the system continuously in the background.

If an accident occurs, the unit stores crash data and then locks itself.

Why does the control unit 68503581AC fail?

Stored crash data is the most common cause with the 68503581AC, even if no airbag has deployed after an accident. An ordinary diagnostic tool cannot erase this data. Added to this are aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

The crash data arises from the event itself and is held in the control unit's memory. The other causes tend to act more gradually and degrade contacts and components over time.

Voltage spikes arise, for example, from a weak battery or from jump-starting, and can stress the electronics.

How can you tell that the 68503581AC is defective?

The airbag warning light on the 68503581AC stays on permanently or comes on intermittently, an error message appears, the diagnostic tool does not reach the control unit, and the fault memory cannot be cleared. Then airbags and seatbelt pretensioners may fail to deploy in an emergency.

The light makes the state of the system visible, even if the car runs normally in everyday use.

If a diagnostic tool cannot connect or the fault memory cannot be emptied, that is a clear reason to have the restraint system checked.

Which vehicles is the 68503581AC fitted in?

The 68503581AC is fitted in these vehicles: Jeep Compass MP (2016-2020) and MP Facelift (from 2020).

Here is the list of vehicles recorded for this part number.

• Jeep Compass MP (2016-2020)
• Jeep Compass MP Facelift (from 2020)

Compare the part number on the label of the removed unit with this page. That ensures you have the right unit in hand. The comparison does not yet give the cause: have the fault memory read out beforehand, since only that result shows whether the control unit is defective or a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers A2C13501200.

How does the repair of the 68503581AC work?

Have the fault memory read out and attach the log, disconnect the battery, and only then remove control unit 68503581AC. Then create a repair order online and send the well-packed unit. Airbag24 checks it on the test bench, replaces defective components, erases the stored crash data and carries out a function test before your own unit goes back to you.

Processing at Airbag24 usually takes 3–4 working days.

The sequence serves the safety of the restraint system and must be followed in this order.

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 68503581AC get to Airbag24?

The control unit 68503581AC goes to Airbag24 as a parcel, or you book a UPS collection for an extra charge. After the repair Airbag24 sends it back by UPS.

Enclose the printed repair order in the parcel. Pack the unit shock-proof so that it arrives undamaged.