Airbag control unit with part number 98820-5JT0A

What does the airbag control unit 98820-5JT0A do?

The airbag control unit 98820-5JT0A is the central control unit of the restraint system (SRS) of Nissan. It evaluates the signals from the crash sensors, decides within fractions of a second in an accident which airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

Faults in the system are reported by the unit via the airbag warning light in the instrument cluster. To do this, it constantly checks the sensors, the wiring and the trigger circuits.

After an accident it stores crash data and locks itself. Only the repair lifts the lock.

Why does the control unit 98820-5JT0A fail?

The most common cause is crash data stored after an accident, even if no airbag has triggered; a normal diagnostic tool cannot clear it. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes, for example from a weak battery or a jump start.

Stored crash data remains in the unit even if the vehicle continues to drive without visible damage after the accident. A normal diagnostic tool cannot reach it.

The other causes concern the electronics. Components age, solder joints can go cold, and moisture or corrosion on plugs disturbs the transmission. Voltage spikes additionally load the unit.

How can you tell that the 98820-5JT0A is defective?

A defect shows as an airbag warning light in the instrument cluster that lights permanently or intermittently, as an error message there, as a diagnostic tool without connection to the control unit, and as a fault memory that cannot be cleared.

The airbag warning light in the instrument cluster lights permanently or intermittently and thereby indicates the fault. An error message may also appear in the instrument cluster. If no connection to the control unit can be made, or the fault memory remains after a clearing attempt, that also points to a fault. Until it is clarified, airbags and seatbelt pretensioners may not be able to trigger in an emergency.

Which vehicles is the 98820-5JT0A fitted in?

The control unit 98820-5JT0A is fitted in these vehicles: Nissan Navara D23 Facelift (from 2020) and D23 (2015-2020).

The vehicles for which this control unit is listed are shown in this overview:

• Nissan Navara D23 Facelift (from 2020)
• Nissan Navara D23 (2015-2020)

Compare the part number on the label of the removed unit with this page, and you know you have the right unit in front of you. Which cause the fault has remains open. Therefore have the fault memory read out beforehand, because this log shows whether the control unit is defective or whether a plug or cable is causing the fault.

For the same vehicles, we also repair control units with the part numbers 0 285 015 304, 28556 3XA5B, 28556-4KD0A, 28556-4KH0B, 28556-4KJ0B, 28556-4KJ0C.

How does the repair of the 98820-5JT0A work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the control unit. Next create a repair order online and send the unit in well packed.

At Airbag24 the unit is examined on the test bench, defective components are replaced, stored crash data is deleted and a function test is carried out. Processing usually takes 3–4 working days. Afterwards your own 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 98820-5JT0A get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS. Put the printed repair order into the parcel and pack the unit shockproof.

A stable packaging with padding protects the control unit along the entire transport route.