Airbag control unit with part number P68239525AB

What does the airbag control unit P68239525AB do?

The airbag control unit P68239525AB is the central SRS control unit of Jeep. It evaluates the signals from the crash sensors, decides within milliseconds in the event of an impact whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously. It shows faults via the airbag warning light.

During driving, the sensors continuously report to the unit what is happening to the vehicle. If the evaluation detects an accident that requires deployment, the control unit takes over the activation of the affected airbags and seatbelt pretensioners.

After a crash, the unit stores crash data and locks itself. This process is firmly built into the function of the system.

Why does the control unit P68239525AB fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed, and a normal diagnostic tool cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

The crash data remains stored until Airbag24 erases it during the repair. A diagnostic tool cannot reach it, so the fault persists.

The other causes tend to develop gradually. Components change over the years, solder joints may have stayed cold since manufacture, and moisture or corrosion attack plug connections.

Voltage spikes arise, for example, from a weak battery or from starting with jump leads, and put additional strain on the electronics.

How can you tell that the P68239525AB is defective?

A defect shows up through an airbag warning light that lights up permanently or intermittently, through an error message in the instrument cluster, and through a diagnostic tool without connection to the control unit. A fault memory that cannot be cleared is also a sign.

These signs can occur together:

• Airbag warning light lights up permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool gets no connection to the control unit
• Fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may possibly not deploy in the event of such a defect. The warning light should therefore be taken seriously, even if the vehicle otherwise runs normally.

Which vehicles is the P68239525AB fitted in?

The details serve for assignment, they are a guide and not a check of your own car. The control unit P68239525AB is fitted in these vehicles: Jeep Cherokee KL Facelift (2018-2023) and KL (2013-2018).

The vehicles belonging to this number are listed individually here:

• Jeep Cherokee KL Facelift (2018-2023)
• Jeep Cherokee KL (2013-2018)

Before sending it in, a double check is worthwhile. Compare the part number on the label of the removed unit with this page; this ensures that it is the right unit. Also have the fault memory read out, because only this result 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 68355363AB.

How does the repair of the P68239525AB work?

The fault memory is read out first and the log is enclosed; then the battery is disconnected and only then the control unit P68239525AB is removed. After that, you create a repair order online and send in the unit well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench and replaces defective components. Stored crash data is erased, and a function test follows before your own unit is returned.

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 P68239525AB get to Airbag24?

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

Put the printed repair order into the parcel and pack the control unit shockproof.