Airbag control unit with part number 98820 CB80E

What does the airbag control unit 98820 CB80E do?

For Nissan, the airbag control unit 98820 CB80E controls the restraint system (SRS). It measures through the crash sensors when an accident happens and then decides within milliseconds which airbags and seatbelt pretensioners are triggered.

During operation the control unit monitors the system continuously. Faults appear via the airbag warning light in the instrument cluster.

After an accident the electronics store crash data and then lock themselves.

Why does the control unit 98820 CB80E fail?

Stored crash data from an accident is the most common cause of a failure of the 98820 CB80E, even when no airbag has deployed. Further causes include ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

A normal diagnostic tool cannot remove crash data. Airbag24 erases it as part of the repair.

The other causes concern the electronics themselves and their connections: components age, solder joints can go cold, and moisture and corrosion attack the plug contacts.

Voltage spikes arise, for example, from a weak battery or when jump-starting.

How can you tell that the 98820 CB80E is defective?

You can recognise a defect in the 98820 CB80E mainly by the airbag warning light in the instrument cluster, which lights up permanently or intermittently.

Fault messages in the instrument cluster, a diagnostic tool without a connection to the control unit and a fault memory that cannot be cleared can also occur. As long as the system shows these findings, airbags and seatbelt pretensioners may not deploy in an emergency.

The warning light is therefore a clear signal and deserves attention.

In which vehicles is the 98820 CB80E fitted?

The control unit 98820 CB80E is fitted in these vehicles: Nissan Murano Z50 (2002-2008). The information helps you place your own car.

The recorded vehicles at a glance:

• Nissan Murano Z50 (2002-2008)

First compare the part number on the label of the removed unit with this page; this only establishes that it is the correct unit. Then have the fault memory read out, because this finding clarifies 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 98820-CA010, 98820CB80D, 98820CC000.

How does the repair of the 98820 CB80E work?

You first have the fault memory read out and attach the log. Then disconnect the battery, and only then remove the control unit 98820 CB80E. Next, create a repair order online and pack the unit well for sending.

Airbag24 usually processes the unit in 3–4 working days: it is checked on the test bench, defective components are repaired, the crash data is erased and a function test is carried out.

Finally the unit 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 CB80E get to Airbag24?

The control unit 98820 CB80E goes to Airbag24 as a parcel, or you book a UPS collection for an extra charge. Airbag24 handles the return by UPS.

The printed repair order goes into the parcel. Pack the unit shockproof.