Airbag control unit with part number 98820 JA70C

What does the airbag control unit 98820 JA70C do?

The airbag control unit 98820 JA70C controls the restraint system (SRS) in the Nissan. It compares the crash sensors with one another, decides in an accident which airbags and seatbelt pretensioners respond, and monitors the system continuously. After an accident it stores crash data and locks itself.

Faults in the system are displayed via the airbag warning light in the instrument cluster. The unit decides whether or not to trigger on the basis of the sensor values.

Why does the control unit 98820 JA70C fail?

Most often the cause is crash data stored after an accident, even if no airbag was triggered; an ordinary diagnostic tool cannot remove it. Ageing electronics, cold solder joints, moisture and corrosion on plugs, and voltage spikes, for example from a weak battery or jump starting, are also possible.

Stored crash data remains in the unit after an event, even without a deployed airbag. At Airbag24 the repair removes it completely.

The other causes develop gradually. A connector that has drawn moisture, a solder joint that has stayed cold, or a weak battery with voltage spikes belong here just as ageing of the components does.

How can you tell that the 98820 JA70C is defective?

A defect is indicated by an airbag warning light that is permanently or intermittently on, error messages in the instrument cluster, a missing connection to the diagnostic tool, and a fault memory that cannot be cleared. Then airbags and seatbelt pretensioners may fail to deploy in an emergency.

The signs occur singly or together. Typical are:

• Warning light in the instrument cluster on
• Error messages there
• No contact with the diagnostic tool
• Fault memory remains

These signs directly affect the restraint system and therefore weigh heavily.

Which vehicles is the 98820 JA70C fitted in?

The 98820 JA70C is fitted in these vehicles: Nissan Altima L32 (2006-2012).

The following list shows for which vehicles this control unit is recorded:

• Nissan Altima L32 (2006-2012)

Compare the part number on the label of the removed unit with this page; this only clarifies whether you have the right unit. Have the fault memory read out beforehand, because 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 98820-9HN0A, 98820-9HS9A, 98820-AV200, 98820-AV21A, 98820-JA100.

How does the repair of the 98820 JA70C work?

First read out the fault memory and attach the log, then disconnect the battery and remove the unit. Create the repair order online and send the unit in well packed. Airbag24 needs 3–4 working days as a rule for checking, repairing and testing.

The sequence serves safety. At Airbag24 the unit is checked on the test bench, defective components are replaced, the crash data is deleted and a function test is carried out.

Afterwards 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 JA70C get to Airbag24?

You send the control unit as a parcel or book a UPS collection for an extra charge. After the repair the unit goes back to you by UPS.

Print the repair order and put it in the parcel. Pay attention to shockproof packaging.