Airbag control unit with part number 98820-ZH41A

What does the airbag control unit 98820-ZH41A do?

The airbag control unit 98820-ZH41A is the control unit of the restraint system (SRS) of Nissan. It evaluates the signals from the crash sensors, decides within milliseconds in an accident on the airbags and seatbelt pretensioners, and reports faults via the airbag warning light.

The unit continuously checks the wiring and the trigger circuits so that the system stays ready.

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

Why does the control unit 98820-ZH41A fail?

The most common trigger is crash data stored after an accident, even if no airbag has triggered; a standard diagnostic tool cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

The crash data remain in the control unit, and the fault memory cannot be reset with the diagnostic tool.

Aged components and cold solder joints develop gradually. Moisture and corrosion at the plugs worsen the connection.

Voltage spikes arise, for example, from a weak battery or when starting with an external power source.

How can you tell that the 98820-ZH41A is defective?

Typical signs are an airbag warning light in the instrument cluster that stays on permanently or intermittently, an error message in the instrument cluster, and a diagnostic tool that cannot establish a connection to the control unit.

• Airbag warning light stays on permanently or intermittently
• Error message in the instrument cluster
• No connection between diagnostic tool and control unit
• Fault memory cannot be cleared

In an emergency, the airbags and seatbelt pretensioners may then fail to deploy. The warning light indicates the defect, and that is exactly why it must be taken seriously.

Which vehicles is the 98820-ZH41A fitted in?

The airbag control unit 98820-ZH41A is fitted in these vehicles: Nissan Titan A60 (2004-2015). Whether it suits your own car only becomes clear when you compare it with this list.

The overview shows the assignment in detail.

• Nissan Titan A60 (2004-2015)

Comparing the part number on the label of the removed unit with this page only ensures that it is the right unit. Having the fault memory read out first shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 0 285 014 624, 1520831000, 152083100B, 1520831U00, 1520831U01, 1520831U0A.

How does the repair of the 98820-ZH41A work?

First, have the fault memory read out and attach the log. Then disconnect the battery and remove the control unit 98820-ZH41A. Next, create a repair order online; testing, repair and function test at Airbag24 usually take 3–4 working days.

The sequence is fixed for safety reasons and must not be swapped.

Then send in the well-packed unit. Airbag24 checks it on the test bench, repairs defective components, deletes the stored crash data and carries out a function test. Your own unit is then 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-ZH41A get to Airbag24?

You send the control unit 98820-ZH41A as a parcel, or book a UPS collection for an extra charge. The return after the repair is made by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof.