Airbag control unit with part number MN141398

What does the airbag control unit MN141398 do?

The airbag control unit MN141398 is the central unit of the restraint system for Mitsubishi. It processes the signals from the crash sensors, decides in a crash on triggering airbags and seatbelt pretensioners, and monitors the system constantly.

It shows irregularities in the system via the airbag warning light in the instrument cluster.

After an accident the unit stores crash data and locks itself. The lock is lifted only by the repair.

Why does the control unit MN141398 fail?

Most often the cause is crash data remaining in memory after an accident, even if no airbag has triggered. A normal diagnostic tool does not delete it. In addition come ageing, cold solder joints, moisture and voltage spikes.

Airbag24 removes the crash data during the repair. The other causes at a glance:

• electronic components that age over time
• solder joints that have gone cold
• moisture or corrosion at plug connections
• voltage spikes when starting with external power or with a weak battery

How can you tell that the MN141398 is defective?

A defect on the MN141398 shows up as the airbag warning light in the instrument cluster lighting up intermittently or constantly, and as fault messages in the instrument cluster. The diagnostic tool then finds no connection to the control unit.

Typical signs:

• warning light in the instrument cluster lights up constantly or intermittently
• fault message in the instrument cluster
• diagnostic tool gets no connection to the control unit
• fault memory cannot be cleared

In an emergency, airbags and seatbelt pretensioners may therefore possibly not trigger. Please have the matter checked promptly.

Which vehicles is the MN141398 fitted in?

The vehicles with the MN141398 include: Mitsubishi Grandis NA (2003-2011).

The overview lists the models for which we record this part number:

• Mitsubishi Grandis NA (2003-2011)

Compare the part number on the label of the unit with this page; that way you know you have the correct unit. Whether the control unit is defective or a plug or cable is the cause only becomes clear from the fault memory, which you have read out beforehand.

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

How does the repair of the MN141398 work?

Testing, repairing and function testing at Airbag24 usually take 3–4 working days. Beforehand, read out the fault memory and attach the log, then disconnect the battery; only then remove the unit. Then create the repair order online and send the unit in well packed.

Airbag24 checks the unit on the test bench, replaces defective components, deletes the crash data and carries out a function test. Afterwards the unit goes back 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 MN141398 get to Airbag24?

The control unit MN141398 reaches us as a parcel or with a UPS collection booked for an extra charge. After the repair it is returned by UPS.

The printed repair order goes in the parcel, and the unit is packed shock-resistant.