Airbag control unit with part number 68588637AB

What does the airbag control unit 68588637AB do?

The airbag control unit 68588637AB is the control unit of the restraint system (SRS) of Jeep. It evaluates signals from the crash sensors, decides within milliseconds in a collision whether airbags and seatbelt pretensioners fire, and keeps the system under control. Faults it finds are made visible on the airbag warning light.

The system is designed so that the control unit checks continuously while the vehicle is being driven. The results go to the instrument cluster.

After an accident the unit stores crash data and locks itself.

Why does the control unit 68588637AB fail?

Stored crash data from an accident is the most common cause, even if no airbag has fired. It cannot be cleared with a normal diagnostic tool. Aged components, cold solder joints and moisture on connectors are also possible causes.

The crash data are directly linked to an accident, which is why they stand out first during fault finding. A diagnosis with the diagnostic tool alone is not enough for this.

The other triggers are voltage spikes, for example from a weak battery or jump-starting, and corrosion on plug connections, which can disturb the contacts.

How can you tell that the 68588637AB is defective?

A defect on the 68588637AB shows itself through an airbag warning light that lights up constantly or intermittently, through fault messages in the instrument cluster, through a diagnostic tool without a connection to the control unit, and through a fault memory that cannot be cleared.

If you take these signs seriously, you will notice a fault in good time. In an emergency, airbags and seatbelt pretensioners may in fact not trigger.

Which vehicles is the 68588637AB fitted in?

The airbag control unit 68588637AB is fitted in these vehicles: Jeep Grand Cherokee WL (from 2021). The part number on the unit shows whether it belongs to your own vehicle.

Below, the assignment is shown as a list:

• Jeep Grand Cherokee WL (from 2021)

Whether the label matches this page only shows that you have the correct control unit. Have the fault memory read out before you remove anything, because the log reveals whether the control unit is defective or a cable or connector is causing the fault.

How does the repair of the 68588637AB work?

First have the fault memory read out and enclose the log with the parcel. Then disconnect the battery and only then remove the 68588637AB. Afterwards create a repair order online and send the unit in, well packed.

At Airbag24 the unit is checked on the test bench; defective components are replaced, stored crash data is erased, and a functional test is then carried out. Processing usually takes 3–4 working days.

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 68588637AB get to Airbag24?

You can send the 68588637AB control unit as a parcel, or have it collected by UPS for an extra charge. After the repair it comes back by UPS.

The printed repair order goes into the parcel. Pack the control unit shock-proof so that it survives transport undamaged.