Airbag control unit with part number MR587532

What does the airbag control unit MR587532 do?

The airbag control unit MR587532 is the central unit of the restraint system (SRS) in Mitsubishi. It evaluates the crash sensors, decides within fractions of a second in an accident which airbags and seatbelt pretensioners are triggered, and reports faults via the airbag warning light.

The unit monitors the entire system continuously and checks its connections while doing so. Irregularities are stored in the fault memory.

After an accident, the control unit saves crash data and locks itself. From that point on, the real work on the fault cause begins in the workshop.

Why does the control unit MR587532 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Normal diagnostic tools do not erase it during regular operation. Other possible causes include aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

Crash data is therefore not always the only reason for a failure, but it is the point where every check starts.

The other causes relate to ageing, contacts and the power supply. They can hardly be narrowed down reliably without reading out the fault memory.

How can you tell that the MR587532 is defective?

If the airbag warning light in the instrument cluster lights up constantly or intermittently, that is a warning sign. Other signs include a fault message in the instrument cluster, a diagnostic tool with no connection to the control unit and a fault memory that cannot be cleared. In that case, airbags and seatbelt pretensioners may not trigger in an emergency.

The warning light is not a cosmetic issue. It shows the fault directly and calls for an inspection of the system.

Whether the control unit itself is affected or a plug is the cause only becomes clear once the fault memory has been read out.

Which vehicles is the MR587532 fitted in?

A control unit MR587532 belongs to Mitsubishi. It is fitted in these vehicles: Mitsubishi Grandis NA (2003-2011).

The following overview lists the assigned vehicles:

• Mitsubishi Grandis NA (2003-2011)

Compare the part number on the label of the removed unit with this page. This only confirms that you have the correct unit in front of you. Also have the fault memory read out. Only this log shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 2489104, MN141401, W2T62674.

How does the repair of the MR587532 work?

First, have the fault memory read out and enclose the log. Then disconnect the battery and only afterwards remove the control unit. Next, create a repair order online and pack the unit well for dispatch.

Airbag24 checks the unit on the test bench, repairs defective components, erases the stored crash data and carries out a function test. After that, your own unit is returned to you.

Processing at Airbag24 usually takes 3–4 working days. This time applies solely to checking, repairing and testing.

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 MR587532 get to Airbag24?

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

Put the printed repair order in the parcel and pack the unit so that it is shock-resistant.