Airbag control unit with part number MN141261

What does the airbag control unit MN141261 do?

The airbag control unit MN141261 runs the restraint system (SRS) of Mitsubishi in the vehicle. It evaluates the crash sensors, decides in an accident within milliseconds on the triggering of airbags and seatbelt pretensioners, and monitors the system constantly. It indicates faults via the airbag warning light.

The unit continuously checks the connections to sensors, airbags and seatbelt pretensioners.

After an accident the control unit stores crash data and is locked afterwards.

Why does the control unit MN141261 fail?

The MN141261 most often fails because of stored crash data, even if no airbag fired. A normal diagnostic tool cannot erase this data; Airbag24 removes it during the repair. Aged components, moisture at plug connectors and voltage spikes are also among the causes.

The further causes in detail:

• Aged electronic components
• Cold solder joints
• Moisture and corrosion at plug connectors
• Voltage spikes, for example from a weak battery or a jump start

Which of these applies becomes apparent from the fault memory and from the inspection of the unit.

How can you tell that the MN141261 is defective?

The airbag warning light in the instrument cluster lights permanently or intermittently as soon as a fault is present on the MN141261. A fault message in the instrument cluster, no connection between the diagnostic tool and the control unit, or a fault memory that cannot be erased also indicate this.

The light is immediately noticeable in everyday use. It reports the fault as soon as the system detects it, yet a more detailed check is still necessary.

In an emergency, the airbags and seatbelt pretensioners may then fail to deploy. A prompt check is therefore sensible.

Which vehicles is the MN141261 fitted in?

The airbag control unit MN141261 is fitted in these vehicles: Mitsubishi Lancer CJ (1996-2003) and CS (2003-2007).

Here is the list:

• Mitsubishi Lancer CJ (1996-2003)
• Mitsubishi Lancer CS (2003-2007)

Carry out the label comparison on the removed unit with this page. It only confirms that the unit fits. Have the fault memory read out beforehand, because only it shows whether the control unit itself is the cause or whether a plug or cable is defective.

For the same vehicles, we also repair control units with the part numbers MN141446, MN141447, MN141473, MR260703, W2T62175, W2T62176.

How does the repair of the MN141261 work?

First read out the fault memory and attach the log to the unit. Then disconnect the battery and only afterwards remove the control unit MN141261. Create the repair order online and send the well-packed unit in. At Airbag24, checking, repairing and testing usually take 3–4 working days.

Airbag24 examines the unit on the test bench, replaces defective components, removes stored crash data and carries out a function test.

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. Afterwards your unit goes back to you.

How does the control unit MN141261 get to Airbag24?

You send the control unit MN141261 to Airbag24 as a parcel or book a UPS collection for an extra charge. Airbag24 returns it by UPS after the repair. The printed repair order goes into the parcel.

Shock-proof packaging protects the unit on the way.