Airbag control unit with part number 8635A182S

What does the airbag control unit 8635A182S do?

The airbag control unit 8635A182S is the control unit of the SRS restraint system for Mitsubishi. It processes the crash sensor data and, in the event of an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered.

During operation it monitors the entire system and reports faults via the airbag warning light. After an accident it stores crash data and locks itself.

Why does the control unit 8635A182S fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool does not erase it. Other causes are aged electronics, cold solder joints, moisture and corrosion, and voltage spikes.

Crash data is therefore the first thing to check during fault finding, because it occurs most often.

A connector with moisture or corrosion can cause faults just as a jump start with voltage spikes can.

How can you tell that the 8635A182S is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently. An error message, a diagnostic tool with no connection to the control unit, or a fault memory that cannot be cleared confirms the suspicion. Airbags and seatbelt pretensioners may then fail to deploy in an emergency.

The vehicle is thus clearly signalling that something is wrong in the system. Have the system checked promptly.

Which vehicles is the 8635A182S fitted in?

The airbag control unit 8635A182S is fitted in these vehicles: Mitsubishi Pajero V80 (2007-2012) and V80 Facelift (2012-2021).

The list of vehicles for which this unit is on record follows.

• Mitsubishi Pajero V80 (2007-2012)
• Mitsubishi Pajero V80 Facelift (2012-2021)

Compare the part number on the label of the removed unit with this page. This only confirms the identity of the unit. Before you remove it, have the fault memory read out. Only this reading shows whether the control unit itself is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 8635A093, MR551782, P21516708.

How does the repair of the 8635A182S work?

Have the fault memory read out and enclose the log. Then disconnect the battery and only after that remove the control unit. Next, create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test.

Afterwards your own unit is returned to you.

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 8635A182S get to Airbag24?

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

The printed repair order goes into the parcel; pack the unit shock-proof.