Airbag control unit with part number 0285001686

What does the airbag control unit 0285001686 do?

The airbag control unit 0285001686 belongs to the SRS restraint system of Mitsubishi. It detects an impact via the crash sensors and afterwards controls the airbags and seatbelt pretensioners. After an accident it stores crash data and locks itself.

The decision to trigger is made within milliseconds. The unit runs continuously and monitors all connections in the system.

As long as there is no fault, it remains invisible to you.

Why does the control unit 0285001686 fail?

Main cause: crash data left in the unit by an accident, even without an airbag triggering; a standard diagnostic tool cannot remove it. Other causes lie in the electronics, the plug connections and the power supply.

The crash data remains in the memory even when the vehicle has long since been driven again.

The other causes include:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or jump-starting

These causes affect the electronics independently of one another, and they can also occur together.

How can you tell that the 0285001686 is defective?

A fault shows up as the warning light, a fault message, a diagnostic tool without connection and a fault memory that cannot be erased. Seatbelt pretensioners and airbags may not trigger in an emergency under these circumstances.

These signs appear singly or in combination:

• Airbag warning light lit permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool does not find the control unit
• Fault memory cannot be erased

As soon as any of these indications appears, have the system checked promptly.

Which vehicles is the 0285001686 fitted in?

The control unit 0285001686 is fitted in these vehicles: Mitsubishi Colt CZ (2004-2008) and CZ Facelift (2008-2012).

The breakdown by vehicle:

• Mitsubishi Colt CZ (2004-2008)
• Mitsubishi Colt CZ Facelift (2008-2012)

Comparing the part number on the label of the removed unit with this page only ensures that it is the correct unit. Before removal, have the fault memory read out, because only this result shows whether the control unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285001684, 285001685, 8635A210, 8635A213, 8635A222, 8635A223.

How does the repair of the 0285001686 work?

First have the fault memory read out and attach the log. Then disconnect the battery before removing the control unit, and create the repair order online. You then send in the well-packed unit, and Airbag24 tests it on the test bench, repairs defective components, erases crash data and carries out a function test.

Processing at Airbag24 usually takes 3–4 working days, and this period covers only the checking, repairing and testing in-house.

Your unit is then 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 0285001686 get to Airbag24?

Your way to Airbag24 is via a parcel that you post yourself, or via a UPS collection booked for an extra charge. Airbag24 handles the return by UPS.

A printed repair order goes in the parcel; you pack the control unit shock-resistant.