Airbag control unit with part number 68346751AB

What does the airbag control unit 68346751AB do?

The airbag control unit 68346751AB is the central control unit of the restraint system (SRS) for Dodge. It evaluates the signals from the crash sensors and, in an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered. It reports faults in the system via the airbag warning light.

The unit monitors the entire restraint system continuously. In doing so, it checks the connection to the sensors, the supply voltage and the connected trigger stages.

After an accident, the control unit stores crash data and locks itself. In an emergency this component is critical, which is why it is checked on the test bench during repair.

Why does the control unit 68346751AB fail?

The most common cause is crash data stored after an accident, even when no airbag has deployed. A standard diagnostic tool cannot erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

The crash data remains stored in the unit as a record.

Components age over time in electronics, solder joints can go cold, and moisture and corrosion attack plug connections. Voltage spikes, for example from a weak battery or a jump-start, place additional strain on the unit.

How can you tell that the 68346751AB is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and a fault message appears in the instrument cluster. In addition, the diagnostic tool has no connection to the control unit, or the fault memory cannot be erased. In an emergency, the airbags and seatbelt pretensioners may then fail to deploy.

The warning light is the system's direct display and therefore the most important warning sign. It shows a detected fault, and you should act on it.

If the light stays on permanently or intermittently, have the restraint system checked promptly.

Which vehicles is the 68346751AB fitted in?

The control unit 68346751AB is fitted in these vehicles: Dodge Ram DS/DJ/D2 (2009-2018). The list below lets you check whether your own vehicle is included.

The list contains the vehicles for which we have this part number on record.

• Dodge Ram DS/DJ/D2 (2009-2018)

Before you send the unit in, two checks help. Comparing the number on the label with this page only confirms that the correct unit is in front of you. Whether the control unit itself is defective, however, only becomes clear from the read-out fault memory, because a plug or a cable can be the cause just as well.

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 68346751AB work?

First have the fault memory read out and attach the log, then disconnect the battery and remove the control unit. Then create a repair order online and send the properly packed unit in. Processing at Airbag24 usually takes 3–4 working days.

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

The order of these steps is mandatory for safety reasons.

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 68346751AB get to Airbag24?

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

Put the printed repair order in the parcel. Pack the unit so that it withstands transport well and is shock-proof.