Airbag control unit with part number P68148027AA

What does the airbag control unit P68148027AA do?

The airbag control unit P68148027AA is the central control unit of the restraint system (SRS) of Jeep. It evaluates the crash sensors, decides in an accident whether airbags and seatbelt pretensioners trigger, and monitors the system continuously during operation. It reports faults via the airbag warning light.

The decision in a crash is made within milliseconds. The electronics work on the measured values without pause for this purpose.

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

Why does the control unit P68148027AA fail?

Stored crash data are the most common cause of failure, even if no airbag was triggered in the accident. A normal diagnostic tool cannot erase them. Other causes include ageing electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

The crash data remain in the unit even when the vehicle is used normally again after the accident. That they cannot be removed with ordinary tools can hold up fault finding at this point.

The other causes concern the electronics themselves. Ageing components, cold solder joints and damp contacts change how the unit behaves. Voltage spikes on the on-board electrical system are also possible, for example with a weak battery or jump-starting.

How can you tell that the P68148027AA is defective?

First the airbag warning light in the instrument cluster shows whether something is wrong: it stays on permanently or flickers intermittently. An error message may also appear in the instrument cluster. If the diagnostic tool cannot reach the control unit, or the fault memory remains, there is a fault. Airbags and seatbelt pretensioners may then not trigger in an emergency.

The signs are clear and easy to confirm. A look at the instrument cluster is enough for a first assessment.

Whoever has seen the light has the system checked.

Which vehicles is the P68148027AA fitted in?

The P68148027AA belongs to these vehicles: Jeep Wrangler JK (2007-2018).

An overview with the details is shown here:

• Jeep Wrangler JK (2007-2018)

Compare the part number on the unit with this page. This clarifies whether the unit fits; a statement about its condition cannot be made from the comparison. Therefore have the fault memory read out beforehand, because only the result shows whether the control unit is defective or a wire or a plug is the cause.

For the same vehicles, we also repair control units with the part numbers 68398609AB, P68003421AB.

How does the repair of the P68148027AA work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and pack the unit well before you send it in.

Airbag24 inspects the unit on the test bench, repairs defective components, erases the stored crash data and carries out a function test. Afterwards the unit goes back to you.

The sequence is binding because it creates safety during removal. 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 P68148027AA get to Airbag24?

The control unit comes to Airbag24 as a parcel, or you have it collected by UPS for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Enclose the printed repair order with the parcel and pack the control unit shockproof.