Airbag control unit with part number P68030605AC

What does the airbag control unit P68030605AC do?

The airbag control unit P68030605AC evaluates the signals from the crash sensors in the vehicle from Jeep. In an accident it decides within milliseconds which airbags and seatbelt pretensioners to trigger. After an accident it stores crash data and locks itself.

As the central control unit of the restraint system (SRS), it monitors all connected components continuously. If it finds a fault, it records it and reports it via the airbag warning light in the instrument cluster.

Crash data are stored in the memory of the unit and remain there.

Why does the control unit P68030605AC fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered; a normal diagnostic tool cannot erase them. Other causes are ageing electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes, for example from a weak battery or a jump-start.

The crash data remain in the unit after the event, and ordinary diagnostic equipment cannot reach them to erase them.

Beyond that, ageing, moisture and electrical stress play a role. Electronic components lose reliability over time, solder joints can go cold, and moisture and corrosion affect the plug connections. Voltage spikes from a weak battery or from a jump-start are also possible.

How can you tell that the P68030605AC is defective?

A defect shows up as an airbag warning light that lights up permanently or intermittently, as an error message in the instrument cluster, as a lack of connection between the diagnostic tool and the control unit, or as a fault memory that cannot be erased. In an emergency, the airbags and seatbelt pretensioners may then fail to trigger.

Typical signs are:

• The airbag warning light stays on or keeps switching on.
• The instrument cluster shows an error message for the airbag system.
• A diagnostic tool gets no connection to the control unit.
• A fault memory cannot be erased.

The warning light is therefore a clear indication of a finding; have it checked promptly.

Which vehicles is the P68030605AC fitted in?

The P68030605AC is fitted in these vehicles: Jeep Wrangler JK (2007-2018).

Here you will find the vehicles for which this part number is stored.

• Jeep Wrangler JK (2007-2018)

Comparing the part number on the label of the removed unit with this page gives certainty that it is the right unit. It says nothing about the condition of the unit. For this reason, have the fault memory read out before removal, because the log shows whether the control unit or a plug or cable is the cause.

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

How does the repair of the P68030605AC work?

First have the fault memory read out and enclose the log with the unit; then disconnect the battery and only then remove the control unit P68030605AC. You create a repair order online and send the unit in well packed, whereupon Airbag24 checks it on the test bench, rectifies defective components, erases crash data and carries out a function test.

This sequence is mandatory for safety reasons; be sure to follow it.

At Airbag24, the processing time is usually 3–4 working days, and it applies to checking, repairing and testing in-house only.

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 P68030605AC get to Airbag24?

Either you pack the unit as a parcel, or you book a UPS collection for an extra charge. After the repair, UPS brings your own unit back to you.

Place the printed repair order in the parcel; pack the control unit shock-proof.