Airbag control unit with part number P8635A247

What does the airbag control unit P8635A247 do?

As the central element, the P8635A247 controls the restraint system (SRS) of Mitsubishi. It processes the readings from the crash sensors and triggers the appropriate airbags and seatbelt pretensioners in an accident within fractions of a second.

During operation, the unit checks all connected components continuously. If it detects a fault, the airbag warning light in the instrument cluster lights up.

After an accident, the control unit stores crash data and locks itself.

Why does the control unit P8635A247 fail?

The most common cause with the P8635A247 is crash data from an earlier accident, even if no airbag was triggered in it. Aged components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes are also possible causes.

A standard diagnostic tool cannot erase this crash data. Airbag24 removes it during repair.

Moisture and corrosion disrupt the contact at plugs, and cold solder joints can come loose. Voltage spikes arise, for example, from a weak battery or when a jump-start cable is connected.

How can you tell that the P8635A247 is defective?

The airbag warning light in the instrument cluster lights up on the P8635A247 permanently or intermittently. In addition there is a fault message in the instrument cluster, no connection to the diagnostic tool and a fault memory that cannot be cleared.

The warning light is the clearest sign of a defect in the restraint system. While it is lit, airbags and seatbelt pretensioners may not deploy in an emergency.

If you notice one of these signs, have the system checked promptly. The light shows the finding.

Which vehicles is the P8635A247 fitted in?

The P8635A247 is fitted in these vehicles: Mitsubishi Lancer CY (2007-2017).

The overview shows the models assigned to this part number:

• Mitsubishi Lancer CY (2007-2017)

Compare the part number on the label of the removed unit with this page to make sure it is the right unit. Whether the control unit is defective or a plug or cable is the cause is shown only by reading out the fault memory. Have it read out before removal.

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

How does the repair of the P8635A247 work?

For the repair of the P8635A247, first have the fault memory read out and enclose the log. Then disconnect the battery, only then remove the control unit and create a repair order online.

Send the well-packed unit in. On the test bench, Airbag24 checks the control unit, finds defective components and repairs them. The crash data is then erased and a function test is carried out.

Airbag24 processes the unit in 3–4 working days. Afterwards, your own unit is returned. 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 P8635A247 get to Airbag24?

You send the control unit P8635A247 in as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back via UPS.

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