Airbag control unit with part number 98820 EA510

What does the airbag control unit 98820 EA510 do?

The airbag control unit 98820 EA510 is the central control unit of the restraint system (SRS) for Nissan. It evaluates the signals from the crash sensors, decides within fractions of a second in an accident on airbags and seatbelt pretensioners, and monitors the entire system.

It stores faults in memory and reports them via the airbag warning light in the instrument cluster. After an accident the unit stores crash data and then locks itself. Only the repair lifts this lock.

Why does the control unit 98820 EA510 fail?

Most often the cause is crash data stored after an accident, even without an airbag deployment. Other causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

A normal diagnostic tool cannot erase crash data. Airbag24 removes it as part of the repair.

Electronic components age, and solder joints can go cold. Moisture and corrosion attack the plug connections. Voltage spikes arise, for example, from a weak battery or when starting with jump leads.

These causes occur alone or together, so a careful check is worthwhile.

How can you tell that the 98820 EA510 is defective?

A defect on the 98820 EA510 shows up as the airbag warning light, fault messages in the instrument cluster, a diagnostic tool without connection and a fault memory that cannot be cleared. Airbags and seatbelt pretensioners may then fail to deploy in an emergency.

• The airbag warning light lights up permanently or intermittently.
• A fault message appears in the instrument cluster.
• The diagnostic tool gets no connection to the control unit.
• The fault memory cannot be cleared.

The warning light shows the fault as soon as it occurs. Take this indication seriously.

Which vehicles is the 98820 EA510 fitted in?

The control unit 98820 EA510 is fitted in these vehicles: Nissan Pathfinder R51 (2004-2007), R51 1st Facelift (2007-2010) and R51 2nd Facelift (2010-2013).

The following list shows the vehicles we know of for this part number.

• Nissan Pathfinder R51 (2004-2007)
• Nissan Pathfinder R51 1st Facelift (2007-2010)
• Nissan Pathfinder R51 2nd Facelift (2010-2013)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the correct unit.

Also have the fault memory read out in advance. Only the log 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 0285001781 Bosch, 98820 EA51C, 98820-3KW0A, 988205X30C.

How does the repair of the 98820 EA510 work?

First you read out the fault memory and enclose the log. Then you disconnect the battery, and only afterwards remove the control unit. Next you create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 tests the unit on the test bench and replaces defective components. Afterwards the crash data is erased, and a function test follows. Your own unit is then returned 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 EA510 get to Airbag24?

You send the control unit 98820 EA510 as a parcel or book a UPS collection for an extra charge. Returns after the repair are made by UPS.

Put the printed repair order into the parcel. Pack the unit shockproof.