Airbag control unit with part number 68085881AH

What does the airbag control unit 68085881AH do?

The airbag control unit 68085881AH is the control unit of the SRS for Dodge. It evaluates the crash sensors, decides in an accident within milliseconds on the triggering of airbags and seatbelt pretensioners, and monitors the system continuously. After an accident it stores crash data and locks itself.

The unit checks the state of the system constantly. It reports irregularities to the driver via the airbag warning light in the instrument cluster.

Without reliable measured values and an even voltage, the unit could not fulfil its task.

Why does the control unit 68085881AH fail?

An entry with crash data from an accident is the most common cause, even if no airbag has fired. Aged components, cold solder joints, moisture, corrosion at plug connections and voltage spikes can also lead to failure. During the repair of the 68085881AH Airbag24 removes stored crash data.

Ordinary diagnostic tools cannot eliminate the crash data, so they remain until the repair.

With voltage spikes from the vehicle electrics, for example when the battery is weak or a jump start was needed, the electronics can be damaged. Ageing and cold solder joints also play a role.

How can you tell that the 68085881AH is defective?

The most visible sign is the airbag warning light in the instrument cluster, which is lit permanently or only at times. In addition an error message may appear, and a fault memory that cannot be cleared on the 68085881AH confirms the problem. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

Watch for these warning signs:

• airbag warning light permanently or intermittently active
• error message in the instrument cluster
• connection error to the diagnostic tool
• fault memory cannot be emptied

If several of these signs occur at the same time, have the vehicle checked without delay. The light alone says nothing about the cause, but it must not be ignored.

Which vehicles is the 68085881AH fitted in?

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

This list shows the individual vehicles:

• Dodge Ram DS/DJ/D2 (2009-2018)

Before removal two checks make sense. A comparison of the part number on the label with this page confirms that the unit is the right one. The fault memory read out beforehand, by contrast, shows whether the control unit itself is affected or whether connectors or cables are 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 68085881AH work?

First have the fault memory of the 68085881AH read out and attach the log. Then disconnect the battery before the control unit is removed. Finally create a repair order online and pack the unit for dispatch.

Checking, repairing and testing at Airbag24 usually take 3–4 working days. Along the way the unit is checked on the test bench, defective components are replaced, the crash data are erased and a function test is carried out.

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 68085881AH get to Airbag24?

Send the 68085881AH to Airbag24 as a parcel, or have it collected by UPS for an extra charge. Airbag24 returns the repaired unit to you by UPS.

The printed repair order goes into the parcel, and the packaging must protect the unit against shocks.