Airbag control unit with part number 98820-JA20A

What does the airbag control unit 98820-JA20A do?

The airbag control unit 98820-JA20A controls the restraint system (SRS) of Nissan. It evaluates the signals from the crash sensors and decides within milliseconds in an accident which airbags and seatbelt pretensioners are triggered. Faults are reported via the airbag warning light.

The unit monitors the system continuously, meaning the airbags, seatbelt pretensioners and the wiring to the sensors. If it detects a deviation, it creates an entry in the fault memory.

After an accident, it stores crash data and locks itself.

How can you tell that the 98820-JA20A is defective?

The most common cause is an entry with crash data created after an accident, even if no airbag has deployed. A standard diagnostic tool cannot access this data and cannot delete it. Aged electronic components, cold solder joints, moisture or corrosion on connectors, and voltage spikes are also possible causes.

At Airbag24, this crash data is deleted during the repair. This is part of the work on the unit and not an additional step.

Electronics age, and solder joints on the circuit boards can become cold over time. Moisture and corrosion attack connectors. A weak battery or jump-starting can cause voltage fluctuations so strong that components are damaged.

How can you tell that the 98820-JA20A is defective?

A defect on the 98820-JA20A shows as the airbag warning light in the instrument cluster staying on permanently or intermittently, along with a fault message there. The diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may possibly not trigger in the event of such a fault. Do not ignore the warning, even if the vehicle appears unremarkable in everyday use.

Have the finding checked promptly rather than waiting for an emergency.

Which vehicles is the 98820-JA20A fitted in?

The assignment is based on the part number 98820-JA20A. The control unit 98820-JA20A is fitted in these vehicles: Nissan Altima L32 (2006-2012).

The overview covers the vehicles recorded for this part number.

• Nissan Altima L32 (2006-2012)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the correct unit. Have the fault memory read out beforehand, because only this result shows whether the control unit itself is defective or whether a connector 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-JA20A work?

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

Airbag24 checks the unit on the test bench, repairs defective components, deletes the stored crash data and runs a function test. Your own unit is then returned to you.

Processing at Airbag24 usually takes 3–4 working days. This time covers only the checking, repairing and testing done there.

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-JA20A get to Airbag24?

You send the control unit 98820-JA20A as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

Place the printed repair order in the parcel and pack the unit shock-resistant.