Airbag control unit with part number 98820-1MX0A

What does the airbag control unit 98820-1MX0A do?

The airbag control unit 98820-1MX0A coordinates the restraint system (SRS) at Infiniti. It evaluates the crash sensors, determines in an accident within milliseconds the triggering of airbags and seatbelt pretensioners, and monitors the system permanently. It indicates faults via the airbag warning light.

Without this control there would be no basis on which the airbags and seatbelt pretensioners react. The unit therefore works in the background on every journey.

After an accident it creates crash data and locks itself.

Why does the control unit 98820-1MX0A fail?

The most important reason for a failure lies in the crash data: if it was created after an accident, the fault persists, even if no airbag has triggered. A usual diagnostic tool does not remove it. The repair at Airbag24 eliminates it.

Ageing electronics, cold solder joints on the circuit board and moisture on plug connections also lead to faults. These problems can develop gradually.

Voltage spikes, for example from a weak battery or jump-starting, stress the electronics just the same and can trigger faults.

How can you tell that the 98820-1MX0A is defective?

A defect can show up in the instrument cluster or on the diagnostic tool. Typical signs are an airbag warning light that lights up permanently or intermittently, and a fault memory that cannot be cleared. A fault message in the instrument cluster also points to one.

• airbag warning light permanently on in the instrument cluster
• airbag warning light coming on intermittently
• message in the instrument cluster
• diagnostic tool does not find the control unit
• fault memory remains despite attempts to clear it

If such signs occur, the airbags and seatbelt pretensioners may not deploy in an emergency. An examination should therefore be arranged promptly.

Which vehicles is the 98820-1MX0A fitted in?

At Infiniti the part number 98820-1MX0A is assigned. The vehicles in which the control unit 98820-1MX0A is fitted are: Infiniti M37 Y51 (2010-2013).

An overview is provided by the list directly below.

• Infiniti M37 Y51 (2010-2013)

Reading out the fault memory before removal shows whether the control unit itself is affected or whether a cable is involved. Then compare the part number on the removed unit with this page.

For the same vehicles, we also repair control units with the part numbers 98820-1MA1C.

How does the repair of the 98820-1MX0A work?

Before removal, read out the fault memory and attach the log. Then disconnect the battery, remove the control unit and create a repair order online. Afterwards pack the unit well and send it in.

On the test bench, Airbag24 examines the unit, replaces defective components, removes the crash data and carries out a function test. For this, Airbag24 generally plans 3–4 working days. 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 98820-1MX0A get to Airbag24?

You can send the control unit 98820-1MX0A in as a parcel, or have it collected by UPS for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

The printed repair order accompanies the parcel, and the packaging should be shockproof.