Airbag control unit with part number P68303231AA

What does the airbag control unit P68303231AA do?

The airbag control unit P68303231AA is the central control unit of the SRS of Dodge. It evaluates the crash sensors, determines the triggering of airbags and seatbelt pretensioners within milliseconds, and monitors the system continuously.

The unit indicates detected faults via the airbag warning light and stores them in the fault memory.

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

Why does the control unit P68303231AA fail?

Stored crash data after an accident are the most common cause, even without an airbag deployment, and a standard diagnostic tool cannot erase them. Other causes are ageing electronic components, cold solder joints, moisture and corrosion, and voltage spikes.

The crash data remain in memory even if the vehicle seems ready to drive. An ordinary reader does not reach them.

• ageing electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump start

The test on the test bench shows which cause applies.

How can you tell that the P68303231AA is defective?

A defect shows itself in several places. The airbag warning light in the instrument cluster lights up permanently or intermittently, and error messages appear there as well.

In detail, these signs stand out:

• airbag warning light on permanently or intermittently
• error message in the instrument cluster
• no connection between the diagnostic tool and the control unit
• fault memory cannot be cleared

In this situation, the airbags and seatbelt pretensioners may not trigger as intended in an emergency. The warning must therefore be taken seriously.

Which vehicles is the P68303231AA fitted in?

The control unit P68303231AA was fitted in these vehicles: Dodge ProMaster VF (from 2014).

The assignment to this part number covers the vehicles in the following list:

• Dodge ProMaster VF (from 2014)

You may read the label comparison as a pure identity check: it confirms the part number and nothing more. Have the fault memory read out beforehand, because only the log shows whether the control unit is defective or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers P68241442AA, P68241442AB, P68335041AA, P68335041AB.

How does the repair of the P68303231AA work?

First have the fault memory read out and enclose the log, then disconnect the battery and remove the control unit. Next, create a repair order online and pack the unit well for posting. Airbag24 checks the unit, replaces defective components, erases the crash data and tests the function; Airbag24 usually needs 3–4 working days for this.

The sequence is fixed for safety reasons, and the log is essential.

After the repair comes the function test, before your own unit is returned.

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 P68303231AA get to Airbag24?

You can either send the unit as a parcel or book a UPS collection for an extra charge. The return after the repair runs via UPS.

Put the printed repair order into the parcel. Pack the control unit shockproof so that it survives the journey undamaged.