Airbag control unit with part number MR587758 DPSB

What does the airbag control unit MR587758 DPSB do?

The airbag control unit MR587758 DPSB belongs to the restraint system (SRS) in vehicles of Mitsubishi. It reads the crash sensors, selects within a fraction of a second in an accident the airbags and seatbelt pretensioners that are to trigger, and monitors the whole system continuously. Faults appear via the airbag warning light.

The control unit works in the background throughout every journey. Each fault it detects is stored in the fault memory, so that a workshop can trace it later.

After an accident it stores crash data and locks itself.

Why does the control unit MR587758 DPSB fail?

Stored crash data from an accident are the most common cause, even if no airbag has deployed. On the MR587758 DPSB, they cannot be erased with a normal diagnostic tool. Other causes include aged electronic components, cold solder joints, moisture and corrosion at connectors, and voltage spikes from a weak battery or a jump start.

Crash data therefore remain in the unit until they are erased during the repair. The fact that no airbag fired changes nothing about this.

The remaining causes mainly concern electronics and connections: components age, connectors can become damp or corroded, and voltage spikes stress the circuit.

How can you tell that the MR587758 DPSB is defective?

On the MR587758 DPSB, the airbag warning light in the instrument cluster lights up permanently or intermittently. In addition, a fault message appears in the instrument cluster, the diagnostic tool cannot find the control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

Anyone who sees the warning light should treat it as a clear sign and have the vehicle checked.

Which vehicles is the MR587758 DPSB fitted in?

The control unit MR587758 DPSB is fitted in these vehicles: Mitsubishi Colt CZ (2004-2008) and CZ Facelift (2008-2012). You can see whether your car is meant by the details in the vehicle registration document.

The vehicles in detail:

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

You compare the part number on the label with this page on the removed unit; this only confirms the right unit. You have the fault memory read out beforehand, because only this result shows whether the control unit itself is the cause or whether a connector or cable is affected.

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 MR587758 DPSB work?

On the MR587758 DPSB, the repair begins with reading out the fault memory; then disconnect the battery and remove the control unit. Then create a repair order online, enclose the log and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24 the unit is examined on the test bench. Defective components are replaced, stored crash data are erased and a functional test is carried out. Afterwards your own unit is returned to you.

The order of the first steps is mandatory, because it affects safety. 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 MR587758 DPSB get to Airbag24?

The unit MR587758 DPSB reaches Airbag24 by parcel, or you book a UPS collection for an extra charge. Airbag24 sends it back by UPS after the repair.

The printed repair order belongs in the parcel, and the unit is packed shockproof.