Airbag control unit with part number 68085881AG

What does the airbag control unit 68085881AG do?

The airbag control unit 68085881AG coordinates the restraint system (SRS) for Dodge. It reads the crash sensors, decides within milliseconds in the event of an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system without interruption. It indicates faults via the airbag warning light.

Monitoring runs throughout operation. The unit stores deviations in the fault memory so that they can be read out later.

After an accident, it stores crash data and locks itself.

Why does the control unit 68085881AG fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool does not erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump-starting.

Crash data is created by the impact and remains stored in the control unit, even if no airbag has deployed. A normal diagnostic tool cannot remove it. Airbag24 deletes it during the repair.

The other causes concern electronics and connections. Aged components and cold solder joints can cause faults. Moisture and corrosion at plug connections deteriorate the contact, and voltage spikes from the vehicle electrical system put a load on the circuit.

How can you tell that the 68085881AG is defective?

A defect is recognised by the airbag warning light staying on permanently or intermittently, by a message in the instrument cluster, or by the diagnostic tool not reaching the control unit. A fault memory that cannot be cleared is also a sign. In an emergency, airbags and seatbelt pretensioners may not trigger.

The airbag warning light in the instrument cluster is the most obvious sign. It indicates that something is wrong in the restraint system, whether permanently or intermittently.

A message in the instrument cluster is the second indication. If the diagnostic tool cannot establish a connection to the control unit, this confirms the suspicion. If the fault memory cannot be cleared, the fault remains.

Which vehicles is the 68085881AG fitted in?

The control unit 68085881AG is fitted in these vehicles: Dodge Ram DS/DJ/D2 (2009-2018).

The list names the vehicles in which this part number occurs:

• Dodge Ram DS/DJ/D2 (2009-2018)

Compare the part number on the label of the removed unit with this page. This only ensures that it is the right unit. Only the fault memory, read out beforehand, shows whether the control unit is defective or whether a plug or a cable is causing the fault.

For the same vehicles, we also repair control units with the part numbers 0285015046, 56043128AC, 56043128AD, 68303217AA, 68303218AA, 68346712AA.

How does the repair of the 68085881AG work?

You begin by reading out the fault memory with the log, followed by disconnecting the battery and removal. Then create the repair order online and send the unit in. At Airbag24, inspection, repair and testing usually take 3–4 working days.

Enclose the log with the unit, disconnect the battery and only then remove the control unit. Create the repair order afterwards and pack the unit carefully.

Airbag24 checks the unit on the test bench, repairs defective components and deletes stored crash data. A function test follows, after which the unit of your own is sent back 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 68085881AG get to Airbag24?

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

Enclose the printed repair order with the parcel and wrap the unit shock-proof.