Airbag control unit with part number P8635A245

What does the airbag control unit P8635A245 do?

The airbag control unit P8635A245 is the control centre of the restraint system for Mitsubishi. It processes the readings from the crash sensors and determines in an accident which airbags and seatbelt pretensioners are triggered.

It checks the system continuously and shows faults via the airbag warning light.

After an accident, the unit records crash data and is locked afterwards.

Why does the control unit P8635A245 fail?

The P8635A245 most often fails because of stored crash data, even if no airbag has deployed. A normal diagnostic tool cannot erase this data. Aged electronics, cold solder joints, moisture, corrosion on plugs and voltage spikes are also suspected.

An accident in which no airbag triggers can still leave crash data in the memory. At Airbag24 these are erased during the repair.

The other causes lie in the electronics and at the connections. Moisture and corrosion attack the plug contacts, while cold solder joints disturb the connection to individual components.

Voltage spikes arise, for example, from a weak battery or when starting with external voltage.

How can you tell that the P8635A245 is defective?

A defect on the P8635A245 shows through the airbag warning light in the instrument cluster, which lights up permanently or intermittently. Added to this are a fault message in the instrument cluster, a missing connection to the diagnostic tool and a fault memory that cannot be cleared.

Such signs mean that airbags and seatbelt pretensioners may not deploy in an emergency. A defect therefore becomes visible rather than hidden.

A diagnosis is the next step, in order to tell apart the control unit, plugs and cables.

Which vehicles is the P8635A245 fitted in?

The P8635A245 is fitted in these vehicles: Mitsubishi Lancer CY (2007-2017).

The list shows the vehicles to which this part number has been assigned.

• Mitsubishi Lancer CY (2007-2017)

You check the part number on the label of the removed unit against this page. That only clarifies that you have the correct unit. Have the fault memory read out before removal, because only this finding shows whether the control unit itself is defective or whether plugs or cables are the cause.

For the same vehicles, we also repair control units with the part numbers P8635A146, P8635A168, TARME1308R0924, TARME2937R0152.

How does the repair of the P8635A245 work?

Have the fault memory read out and attach the log. Then disconnect the battery, remove the P8635A245 and create a repair order online.

Pack the unit well before you send it to Airbag24.

Airbag24 checks the control unit on the test bench, replaces defective components, erases the stored crash data and carries out a function test. Processing normally takes 3–4 working days. Afterwards your own unit goes back 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 P8635A245 get to Airbag24?

The control unit P8635A245 reaches Airbag24 either as a parcel or via a UPS collection, which is booked for an extra charge.

After the repair, Airbag24 returns the unit by UPS. Enclose the printed repair order and pack the unit shockproof.