Airbag control unit with part number P8635A131

What does the airbag control unit P8635A131 do?

The airbag control unit P8635A131 is the central control unit of the SRS restraint system for Mitsubishi. It evaluates the crash sensors, determines in the event of an accident which airbags and seatbelt pretensioners are triggered, and monitors the system during operation. After an accident, it stores crash data and locks itself.

If the unit detects a fault, it indicates this via the airbag warning light in the instrument cluster. The control unit is therefore the central point for fault messages in the restraint system.

The system checks itself continuously, so deviations during operation are reported.

Why does the control unit P8635A131 fail?

Stored crash data are the most common cause of a failure of the P8635A131, even if no airbag was triggered in the accident. Aged components, moisture at plug connections and voltage spikes can also be involved.

These data cannot be erased with a normal diagnostic tool. Airbag24 erases them during the repair.

Besides the crash data, aged electronic components, cold solder joints and corrosion at plug connections can come into consideration. Voltage spikes, for example from a weak battery or jump starting, can also cause a failure.

How can you tell that the P8635A131 is defective?

A defect shows as the airbag warning light in the instrument cluster lighting up permanently or intermittently. An error message in the instrument cluster or a fault memory that cannot be cleared also indicates the defect.

If no connection to the control unit can be established, this also counts as a sign of a fault. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

Do not wait for the display to change on its own before having it checked.

Which vehicles is the P8635A131 fitted in?

The P8635A131 is fitted in these vehicles: Mitsubishi Outlander CW (2006-2010) and CW Facelift (2010-2012).

The following vehicles are recorded for this part number:

• Mitsubishi Outlander CW (2006-2010)
• Mitsubishi Outlander CW Facelift (2010-2012)

Two steps are useful before removal. The part number on the label of the removed unit is compared with this page; this only confirms that it is the right unit. The fault memory read out beforehand, on the other hand, shows 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 285011150, 285011151, 8635A215, 8635A221, 8635A282, 8635A283.

How does the repair of the P8635A131 work?

For the P8635A131, this order applies. First have the fault memory read out and enclose the log, then disconnect the battery and only afterwards remove the control unit. Then create a repair order online and send in the well-packed unit.

Airbag24 checks the control unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. Processing of these steps usually takes 3–4 working days.

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 P8635A131 get to Airbag24?

You send the control unit P8635A131 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

Put the printed repair order into the parcel and pack the unit shockproof.