Airbag control unit with part number 8635A044

What does the airbag control unit 8635A044 do?

The airbag control unit 8635A044 coordinates the triggering of airbags and seatbelt pretensioners in the restraint system (SRS) of Mitsubishi. It reads the signals from the crash sensors, decides within milliseconds in an impact, and monitors the system continuously.

The device stores faults and displays them via the airbag warning light in the instrument cluster. After an accident it records crash data and locks its function; only the repair lifts this lock.

In everyday use the control unit works unnoticed in the background and checks its components as it does so.

Why does the control unit 8635A044 fail?

On the 8635A044, the most common cause is stored crash data from an accident, even if no airbag was triggered. Aged components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes are also possible.

Crash data arise as soon as the impact is registered, even if no airbag triggers. A normal diagnostic tool cannot erase them, so the fault remains in memory.

Aged components and cold solder joints belong to the causes that develop slowly. Moisture and corrosion on plug connections also belong here.

Voltage spikes form a separate group: a weak battery or a jump start can stress the unit with them.

How can you tell that the 8635A044 is defective?

A defect on the 8635A044 becomes visible through the airbag warning light in the instrument cluster, which lights up permanently or intermittently. Error messages in the instrument cluster, no connection to the diagnostic tool, or a fault memory that cannot be cleared are also signs. In an emergency, airbags and seatbelt pretensioners may then not be able to trigger.

The airbag warning light in the instrument cluster is the clearest indication the vehicle gives. If it is displayed permanently or appears repeatedly, there is a fault that must be checked.

If the fault memory cannot be cleared or the diagnostic tool does not find the control unit, much points to the control unit itself. Only an evaluation makes that certain.

Which vehicles is the 8635A044 fitted in?

With Mitsubishi, you will find the control unit 8635A044 in these models: Mitsubishi Galant DJ (2004-2012).

The models in detail:

• Mitsubishi Galant DJ (2004-2012)

Comparing the part number on the label of the removed unit with this page confirms that you have the correct unit. Whether the control unit itself is defective, or a plug or cable is the cause, is only clarified by reading out the fault memory, which you should arrange in advance.

How does the repair of the 8635A044 work?

You first have the fault memory read out and enclose the log. Then disconnect the battery and remove the control unit 8635A044. Next, create a repair order online and send the unit in well packed.

At Airbag24 the unit is checked, defective components are replaced, crash data is erased and a function test is carried out. Afterwards you receive your own unit 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 8635A044 get to Airbag24?

You send the control unit 8635A044 either as a parcel, or you book a UPS collection for an extra charge. After the repair, UPS takes it from Airbag24 back to you.

The printed repair order belongs in the parcel. In addition, pack the unit so that it withstands knocks.