Airbag control unit with part number P68239523AA

What does the airbag control unit P68239523AA do?

The airbag control unit P68239523AA is the control unit of the restraint system (SRS) in Jeep. It checks the signals from the crash sensors, decides in a crash within milliseconds on airbags and seatbelt pretensioners, and monitors the system continuously. After an accident, it stores crash data and locks itself.

Evaluation takes place constantly while the vehicle is in operation. If the unit detects a fault, it reports it via the airbag warning light.

Why does the control unit P68239523AA fail?

The most common cause on the P68239523AA is crash data stored after an accident, even if no airbag has deployed. Added to this are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example with a weak battery or jump-starting.

Crash data cannot be erased with a normal diagnostic tool. The entry therefore remains in memory until it is removed during the repair.

The other causes develop gradually. Older components lose reliability, moisture gets to the contacts, and current surges when starting can stress the electronics.

How can you tell that the P68239523AA is defective?

A defect on the P68239523AA becomes visible mainly through the airbag warning light, which lights up in the instrument cluster permanently or intermittently. A fault message in the instrument cluster can also appear. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

The signs at a glance:

• The airbag warning light lights up permanently or intermittently.
• A fault message appears in the instrument cluster.
• The diagnostic tool finds no connection to the control unit.
• The fault memory cannot be cleared.

With any of these signs, it is worth checking the fault memory before you remove anything. The light is not a cosmetic issue but a warning to have it checked promptly.

Which vehicles is the P68239523AA fitted in?

The P68239523AA is intended for several vehicles at Jeep. It is fitted in these vehicles: Jeep Cherokee KL Facelift (2018-2023) and KL (2013-2018).

The list follows as a line below, so you can compare your vehicle directly.

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

Before removal, comparing the part number and reading out the fault memory both help. The comparison with the label only confirms that the unit is the right one. Reading out the fault memory, on the other hand, shows whether the control unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 68355363AB.

How does the repair of the P68239523AA work?

First have the fault memory read out, then disconnect the battery and only then remove the P68239523AA. Create a repair order online, enclose the log and send in the well-packed unit.

Airbag24 checks the unit on the test bench and repairs defective components. Afterwards Airbag24 erases the stored crash data and runs a function test.

Processing at Airbag24 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 P68239523AA get to Airbag24?

You can send the P68239523AA in as a parcel, or have it collected by UPS for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Pack the unit shock-proof and enclose the printed repair order.