Airbag control unit with part number MR587759

What does the airbag control unit MR587759 do?

The airbag control unit MR587759 forms the central control unit of the SRS for Mitsubishi. It evaluates the crash sensors, decides within milliseconds in the event of an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

The manufacturer's part number Bosch 0285001689 is additionally stamped on the housing. The control unit reports faults via the airbag warning light, and after an accident it stores crash data and locks itself.

Why does the control unit MR587759 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data remains stored in the control unit until it is removed. A standard diagnostic tool cannot delete it, which is why Airbag24 takes on this step during the repair.

Aged electronic components and cold solder joints can cause signals to be transmitted unreliably. Moisture and corrosion at plug connections disrupt the contact between the control unit and the wiring harness.

Voltage spikes, for example from a weak battery or jump-starting, can stress components and thus contribute to the failure.

How can you tell that the MR587759 is defective?

The airbag warning light in the instrument cluster lights up constantly or intermittently. A fault message may also appear in the instrument cluster, the diagnostic tool may be unable to establish a connection with the control unit, or the fault memory may not be clearable.

With these signs, airbags and seatbelt pretensioners may not deploy in an emergency. The warning light thus gives a clear indication that something is wrong with the restraint system and must not be ignored.

Which vehicles is the MR587759 fitted in?

The MR587759 is fitted in these vehicles: Mitsubishi Colt CZ (2004-2008) and CZ Facelift (2008-2012).

You will find the vehicles for this part number listed here:

• 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 confirms that it is the correct unit. Before that, have the fault memory read out. Only this log shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285001684, 8201A143, 8635A223, 97RA-0104822, MR587416, MR587417.

How does the repair of the MR587759 work?

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. Checking, repairing and testing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the MR587759 on the test bench, replaces defective components and deletes the stored crash data. After the function test, your own unit is sent back.

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 MR587759 get to Airbag24?

You send the MR587759 in as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

Pack the control unit shock-proof and include the printed repair order.