Airbag control unit with part number 8635A180

What does the airbag control unit 8635A180 do?

The airbag control unit 8635A180 is the control unit of the restraint system (SRS) of Mitsubishi. It processes signals from the crash sensors, decides in an accident on airbags and seatbelt pretensioners, and locks itself after an accident.

Outside an accident, it monitors the wiring and the triggers. If it detects a deviation, the airbag warning light in the instrument cluster lights up, and the fault is stored in the memory.

Why does the control unit 8635A180 fail?

The most common cause is stored crash data after an accident, even without a triggered airbag. A standard diagnostic tool cannot erase it. Further causes lie in the electronics and at the connections.

Crash data arises after an accident, regardless of whether the airbags fire. Airbag24 erases it during the repair.

Other causes at a glance:

• aged components
• dry solder joints
• moisture and corrosion at plug connections
• voltage spikes from a weak battery or jump-starting

How can you tell that the 8635A180 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and an error message appears in the instrument cluster. In addition, the diagnostic tool gets no connection to the control unit, and the fault memory cannot be cleared.

As long as these signs persist, airbags and seatbelt pretensioners may not trigger in an emergency.

Check the warning promptly rather than ignoring it.

Which vehicles is the 8635A180 fitted in?

The 8635A180 is fitted in these vehicles: Mitsubishi Pajero V90 (2007-2012) and V90 Facelift (2012-2021).

Below you will see the list of assigned vehicles.

• Mitsubishi Pajero V90 (2007-2012)
• Mitsubishi Pajero V90 Facelift (2012-2021)

Before removal, compare the part number on the label with this page. This only ensures that you have the right unit. Whether the control unit itself is defective, or a plug or cable is the cause, is shown only by reading out the fault memory before removal.

For the same vehicles, we also repair control units with the part numbers 153000313, 3SR791, 5757A026, 7407A095, 7420A082, 8635A457.

How does the repair of the 8635A180 work?

First read out the fault memory and enclose the log; then disconnect the battery and only afterwards remove the control unit. Next, create a repair order online and send in the well-packed unit. Airbag24 checks, repairs and tests the unit; processing there usually takes 3–4 working days.

At Airbag24, defective components are replaced and the stored crash data is erased. A function test takes place at the end.

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 8635A180 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. Print the repair order and place it in the parcel, and pack the unit shock-proof. After the repair, Airbag24 sends it back by UPS.

Make sure the unit does not slip in the box.