Airbag control unit with part number W2T67472

What does the airbag control unit W2T67472 do?

For Mitsubishi, the airbag control unit W2T67472 controls the restraint system (SRS). It evaluates the crash sensors, determines in a crash which airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

If the unit detects a fault, the airbag warning light in the instrument cluster comes on. For you, this light is the first indication that something in the system is wrong.

After an accident it stores crash data and locks itself.

Why does the control unit W2T67472 fail?

Most often the cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool does not erase it. Further causes are ageing components, cold solder joints, moisture and corrosion, as well as voltage spikes.

Crash data is at the top of the list because it is one of the typical consequences of an accident. Heat and wet conditions stress solder joints and plug connections, and this takes effect over time.

The other causes tend to act over a longer period or under unfavourable conditions. Jump-starting or a weak battery creates voltage spikes that can affect the electronics.

Which of these causes actually applies is shown only by reading out the fault memory.

How can you tell that the W2T67472 is defective?

The airbag warning light in the instrument cluster lights up constantly or only intermittently. A defect also shows up as a fault message, as a diagnostic tool with no connection to the control unit, and as a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not be able to trigger.

The light shows the defect, so have the system checked promptly when it comes on.

Whether the control unit itself or the wiring is affected is shown only by the diagnosis.

Which vehicles is the W2T67472 fitted in?

The W2T67472 is fitted in these vehicles: Mitsubishi i-MiEV HA3W (2009-2020).

The vehicle assignment for this part number looks like this:

• Mitsubishi i-MiEV HA3W (2009-2020)

Comparing the part number on the label of your unit with this page only confirms that it is the right unit. Whether the control unit is defective or a plug or cable is the cause is shown only by the fault memory read out beforehand.

For the same vehicles, we also repair control units with the part numbers 8635A387.

How does the repair of the W2T67472 work?

First have the fault memory read out and enclose the log, then disconnect the battery and remove the control unit. Next create a repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and carries out a function test. The unit then 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 W2T67472 get to Airbag24?

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

Pack the unit shockproof and put the printed repair order into the parcel.