Airbag control unit with part number 98820 EB01B

What does the airbag control unit 98820 EB01B do?

The 98820 EB01B is the control unit of the restraint system (SRS) in Nissan. It evaluates the crash sensors and decides, within milliseconds, which airbags and seatbelt pretensioners fire in an accident.

The unit checks the system without interruption and indicates faults via the airbag warning light in the instrument cluster.

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

Why does the control unit 98820 EB01B fail?

Stored crash data after an accident is the most common cause on the 98820 EB01B, even if no airbag has deployed. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes, for example from a weak battery or jump-starting.

The crash data remains in the memory and cannot be erased with a normal diagnostic tool. Airbag24 erases it during the repair.

Aged electronic components and cold solder joints affect the circuit itself, while moisture and corrosion attack the plug connectors. Voltage spikes additionally stress the entire electronics.

How can you tell that the 98820 EB01B is defective?

The airbag warning light in the instrument cluster lights up on the 98820 EB01B, either permanently or intermittently. Other signs are an error message, no connection to the diagnostic tool, and a fault memory that cannot be cleared.

The airbag warning light in the instrument cluster is the clearest sign of a fault. If it stays on or flickers, the control unit has detected an error, even if the vehicle can still be driven.

As a result, the airbags and seatbelt pretensioners may fail to deploy in an emergency. The finding should therefore be taken seriously.

Which vehicles is the 98820 EB01B fitted in?

The 98820 EB01B is fitted in these vehicles: Nissan Navara D40 (2005-2007) and D40 Facelift (2007-2015).

The assignment to the models looks like this:

• Nissan Navara D40 (2005-2007)
• Nissan Navara D40 Facelift (2007-2015)

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, as only this result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285001734, 28556 4X00A, 28556EA100, 98820 5X20B, 98820 EB01C, 98820 EB01D.

How does the repair of the 98820 EB01B work?

First, have the fault memory read out and enclose the log. Then disconnect the battery, remove the 98820 EB01B, create a repair order online and finally pack the unit well and send it in.

At Airbag24, the unit is checked on the test bench, defective components are replaced, the crash data is erased and a function test is carried out. The usual processing time for this work is 3–4 working days, and this time covers checking, repairing and testing at Airbag24 only.

The unit then returns 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 EB01B get to Airbag24?

You send the 98820 EB01B in as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

Place the printed repair order in the parcel and pack the unit shockproof.