Airbag control unit with part number 98820-9PC1A

What does the airbag control unit 98820-9PC1A do?

The airbag control unit 98820-9PC1A is the central control unit of the restraint system (SRS) for Nissan. It analyses the signals from the crash sensors, determines within milliseconds in the event of an accident which airbags and seatbelt pretensioners are triggered, and monitors the system during operation. It reports faults via the airbag warning light.

During operation the unit constantly receives measured values and checks the connections to the airbags and seatbelt pretensioners. This keeps the system ready for use in an emergency.

After an accident the control unit stores crash data and locks itself.

Why does the control unit 98820-9PC1A fail?

Stored crash data is the most common cause, even if no airbag was triggered in the accident. Other causes include ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data remains in the memory because a normal diagnostic tool cannot delete it. The fault therefore persists until the data is erased during repair. Airbag24 takes care of this during processing.

The other causes lie in the unit itself or its wiring. Ageing electronic components lose reliability, cold solder joints can come loose, and moisture or corrosion attack the plug connections. Voltage spikes occur, for example, with a weak battery or when jump-starting.

How can you tell that the 98820-9PC1A is defective?

The airbag warning light in the instrument cluster stays on constantly or intermittently, an error message appears in the instrument cluster, and the diagnostic tool cannot connect to the control unit. In addition, the fault memory cannot be cleared, and airbags and seatbelt pretensioners may then fail to trigger in an emergency.

The warning light is the clearest sign you will get from the vehicle. If it stays on, have the system checked promptly.

Only reading the fault memory will show whether the control unit itself is affected.

Which vehicles is the 98820-9PC1A fitted in?

The control unit 98820-9PC1A is fitted in these vehicles: Nissan Pathfinder R52 Facelift (2016-2021) and R52 (2013-2016). Do not skip checking the part number, as it shows whether this is the right unit.

Below you will find an overview of the vehicles recorded for this part number.

• Nissan Pathfinder R52 Facelift (2016-2021)
• Nissan Pathfinder R52 (2013-2016)

Compare the part number on the removed unit with this page. Also have the fault memory read before removal, because only this result shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285013305, 98820-9PC5A, 98820-9WD1A.

How does the repair of the 98820-9PC1A work?

For the repair of the 98820-9PC1A, first read out the fault memory and enclose the log. Then disconnect the battery and remove the control unit, then create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

This sequence protects you and is therefore binding. Removal only begins once the battery has been disconnected.

Airbag24 tests the unit on the test bench, repairs defective components and erases the stored crash data. Airbag24 then carries out a function test before your own unit is 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 98820-9PC1A get to Airbag24?

You send the control unit 98820-9PC1A as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 returns it by UPS.

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