Airbag control unit with part number 68621935AG

What does the airbag control unit 68621935AG do?

At Jeep, the airbag control unit 68621935AG controls the restraint devices. It evaluates the crash sensors, triggers the appropriate airbags and seatbelt pretensioners in an accident, and monitors the system continuously. After an accident it stores crash data and locks itself.

The decision to trigger is made within milliseconds once the measured values are available. The system checks itself continuously during this.

If a fault is found, the control unit reports it via the airbag warning light and records it in the fault memory. This is one of its basic tasks.

Why does the control unit 68621935AG fail?

Crash data stored after an accident is the most common cause at the 68621935AG, even when no airbag has deployed. Aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes are also possible.

These data cannot be erased with a common diagnostic tool. Airbag24 removes them during the repair.

Aged components, cold solder joints and moisture at the plugs act inside the unit. Voltage spikes, for example from a weak battery or a jump start, are also possible.

How can you tell that the 68621935AG is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently when the 68621935AG is defective. A fault message in the instrument cluster may be added. In addition, the diagnostic tool cannot reach the control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may possibly not deploy.

Signs like these justify a check, even if the vehicle runs unremarkably in everyday use.

Which vehicles is the 68621935AG fitted in?

The control unit 68621935AG is fitted in these vehicles: Jeep Wrangler JL (from 2018).

These models are listed here:

• Jeep Wrangler JL (from 2018)

Compare the part number on the label of the removed unit with this page. This comparison does nothing more than confirm the unit. Have the fault memory read out beforehand, because only then is it clear whether the control unit is defective or whether 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 68621935AG work?

The process begins with reading out the fault memory, whose log is enclosed with the unit. Only after that do you disconnect the battery and remove the control unit from the 68621935AG. In the last step you create the repair order online and pack the unit for sending.

At Airbag24 the unit is checked on the test bench, defective components are repaired and crash data is erased. The work is completed by a function test, then your own unit comes back. Processing at Airbag24 usually takes 3–4 working days.

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 68621935AG get to Airbag24?

Either you send the unit as a parcel directly to Airbag24, or you book a UPS collection for an extra charge. Airbag24 sends the repaired unit back to you by UPS.

Include the printed repair order in the parcel, and pack the control unit shockproof.