Airbag control unit with part number 98820-3JE0B

What does the airbag control unit 98820-3JE0B do?

The airbag control unit 98820-3JE0B coordinates the airbags and seatbelt pretensioners in the SRS restraint system of Infiniti. It evaluates the crash sensors, decides within milliseconds whether to trigger, and monitors the system continuously.

The sensors send data to the unit continuously. There it is evaluated, and in the event of an impact the decision is made as to which restraint devices are used. The control unit itself detects faults in the system and indicates them via the airbag warning light.

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

Why does the control unit 98820-3JE0B fail?

On the 98820-3JE0B, the most common cause is crash data stored after an accident, even if no airbag was triggered. Ageing components, cold solder joints, moisture and corrosion at plugs, and voltage spikes can also play a part.

Crash data cannot be erased with a standard diagnostic tool. Airbag24 removes it during the repair.

Further causes at a glance:

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

How can you tell that the 98820-3JE0B is defective?

A defect on the 98820-3JE0B shows first as the airbag warning light in the instrument cluster staying on permanently or intermittently. Error messages in the instrument cluster, no connection to the diagnostic tool and a fault memory that cannot be cleared may also appear.

The warning light indicates the defect, and it is not without consequences: in an emergency, airbags and seatbelt pretensioners may not trigger. Do not treat the finding as trivial.

Only a readout of the fault memory will show whether the unit itself is affected.

Which vehicles is the 98820-3JE0B fitted in?

The 98820-3JE0B is fitted in the following vehicle: Infiniti QX60 L50 (2012-2015).

The vehicle details are in this list:

• Infiniti QX60 L50 (2012-2015)

Comparing the part number on the label of the removed unit with this page only confirms that it is the right unit. Have the fault memory read out beforehand. The result shows whether the control unit is defective or whether a connector or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285012283, 98820-9NB0A.

How does the repair of the 98820-3JE0B work?

Processing at Airbag24 usually takes 3–4 working days. First have the fault memory read out; the log goes into the package later. Then disconnect the battery and remove the 98820-3JE0B. Finally, create a repair order online and send in the unit well packed.

Airbag24 tests the unit on the test bench, repairs defective components, erases the crash data and carries out a function test. Afterwards the unit comes 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 98820-3JE0B get to Airbag24?

You send the 98820-3JE0B by parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

The printed repair order goes into the parcel, and the unit is packed shock-proof.