Airbag control unit with part number 98820-EZ06B

What does the airbag control unit 98820-EZ06B do?

The 98820-EZ06B is the airbag control unit for Nissan vehicles and controls the entire restraint system (SRS). In a crash, it processes the signals from the crash sensors and triggers the appropriate airbags and seatbelt pretensioners within milliseconds.

During operation, it constantly monitors the wiring and components. If it detects a deviation, the airbag warning light in the instrument cluster comes on.

After an accident, it stores crash data and locks itself. While driving, nothing of this is visible, but during a diagnosis it is.

Why does the control unit 98820-EZ06B fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a standard diagnostic tool does not erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes, for example from a weak battery or jump-starting.

The crash data comes from the event itself and does not disappear on its own. As long as it remains in the unit, a standard diagnostic tool does not help identify the cause.

The other causes tend to develop over a longer period: components age, solder joints become brittle, and moisture attacks the contacts. Voltage spikes, however, can occur suddenly and place a direct load on the electronics.

How can you tell that the 98820-EZ06B is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. In addition, an error message appears, the diagnostic tool cannot find the control unit, and the fault memory cannot be cleared.

The system reports these signs itself, so this is not a guess. As soon as the light comes on, the finding is visible, even if the fault initially seems minor.

In an emergency, airbags and seatbelt pretensioners may fail to deploy. A check without delay is therefore advisable.

Which vehicles is the 98820-EZ06B fitted in?

The assignment is based on our current data. The control unit 98820-EZ06B is fitted in these vehicles: Nissan Titan H61 (2015-2020).

The vehicles recorded so far are shown in the following overview. It does not claim to be complete.

• Nissan Titan H61 (2015-2020)

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

For the same vehicles, we also repair control units with the part numbers 285013989, 98820-EZ20B, 98820-EZ29B.

How does the repair of the 98820-EZ06B work?

First, read out the fault memory and attach the log. Then disconnect the battery; only after that remove the control unit. Next, create a repair order online and send in the well-packed unit.

Airbag24 checks the unit on the test bench, repairs defective components, erases the crash data and carries out a function test. Processing usually takes 3–4 working days, counted only for the checking, repairing and testing done by us.

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-EZ06B get to Airbag24?

You send the unit as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

Put the printed repair order in the parcel, and pack the control unit shock-proof.