Airbag control unit with part number P68239526AB

What does the airbag control unit P68239526AB do?

The airbag control unit P68239526AB is the central control unit of the restraint system (SRS) for Jeep. It evaluates the signals from the crash sensors and decides within milliseconds in the event of an accident which airbags and seatbelt pretensioners are triggered. After a crash, it stores crash data and locks itself.

The unit monitors the entire restraint system continuously. If it detects a fault, it shows this via the airbag warning light in the instrument cluster. The evaluation of the sensor data is therefore the basis of every triggering decision.

Whether the system responds correctly in an emergency thus depends on the control unit itself working properly.

Why does the control unit P68239526AB fail?

With the control unit P68239526AB, the most common cause is crash data stored after an accident, even if no airbag has deployed. This data cannot be erased with a normal diagnostic tool. Other causes are aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

A normal diagnostic tool reads out the fault memory, but the stored crash data remains in the unit.

We deliberately keep the other causes general, because they affect each unit differently. Electronic components age, solder joints can lose their contact, and moisture or corrosion disturb signal transmission at plug connections. Voltage spikes, for example from a weak battery or a jump start, can also affect the electronics.

How can you tell that the P68239526AB is defective?

On the P68239526AB, the airbag warning light in the instrument cluster lights up permanently or intermittently. In addition there is an error message in the instrument cluster, a diagnostic tool without connection to the control unit, and a fault memory that cannot be cleared.

The warning light may burn continuously or only light up now and then. In both cases the system has detected a fault, and please take this message seriously.

In an emergency, airbags and seatbelt pretensioners may possibly not deploy. Please have the finding checked promptly before you rely on the system.

Which vehicles is the P68239526AB fitted in?

The list shows in which vehicles the control unit P68239526AB occurs and is a guide. It is fitted in these vehicles: Jeep Cherokee KL Facelift (2018-2023) and KL (2013-2018).

The vehicles at a glance:

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

Compare the part number on the label of the removed unit with this page first. This only ensures that it is the right unit. Also have the fault memory read out beforehand, because only this 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 P68239526AB work?

The fault memory is read out first and the log is enclosed with the unit. Then the battery is disconnected and only then the control unit P68239526AB 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, repairs or replaces defective components, erases stored crash data and carries out a function test. After that, 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 P68239526AB get to Airbag24?

You send the control unit P68239526AB as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

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