Airbag control unit with part number 98820 CD200

What does the airbag control unit 98820 CD200 do?

The airbag control unit 98820 CD200 is the central control unit of the SRS in Nissan models. It evaluates the signals from the crash sensors and decides in an accident within milliseconds which airbags and seatbelt pretensioners are triggered. Between accidents it monitors the system and indicates faults via the airbag warning light.

Sensors, wiring and actuators are checked continuously. An accident causes the unit to store crash data and lock itself.

Why does the control unit 98820 CD200 fail?

Stored crash data after an accident is the most common cause, even if no airbag was triggered. An ordinary diagnostic tool cannot erase it; Airbag24 erases it during the repair. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from jump-starting or a weak battery.

Crash data is therefore created regardless of whether an airbag was triggered. The other causes concern the electronics themselves and their connections: components wear over time, cold solder joints are a possible weak point, and moisture attacks contacts.

How can you tell that the 98820 CD200 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, a fault message appears in the instrument cluster, the diagnostic tool finds no connection to the control unit, or a fault memory cannot be cleared. In that case, airbags and seatbelt pretensioners may not deploy in an emergency.

The airbag warning light is the signal that makes a defect visible first. It shows the defect rather than hiding it. If the diagnostic tool cannot establish a connection, a cable or the power supply may be behind it; an inspection will establish which cause applies.

Which vehicles is the 98820 CD200 fitted in?

The control unit 98820 CD200 is fitted in these vehicles: Nissan 350Z Z33 2nd Facelift (2007-2009), Z33 1st Facelift (2005-2007) and Z33 (2002-2005).

The following vehicles are assigned to this part number.

• Nissan 350Z Z33 2nd Facelift (2007-2009)
• Nissan 350Z Z33 1st Facelift (2005-2007)
• Nissan 350Z Z33 (2002-2005)

Compare the part number on the label of the removed unit with this page to make sure it is the correct unit. Whether the control unit is defective or a plug or cable is the cause is shown only by the fault memory read-out. So have it read out beforehand.

For the same vehicles, we also repair control units with the part numbers 28556 EV20A, 98820-EV20A, 98820CD600.

How does the repair of the 98820 CD200 work?

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

Airbag24 inspects the unit on the test bench and replaces defective components. The stored crash data is then erased, and a function test concludes the repair. Processing usually takes 3–4 working days, after which 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 CD200 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.