Airbag control unit with part number 28556 ZJ00A

What does the airbag control unit 28556 ZJ00A do?

For Nissan, the airbag control unit 28556 ZJ00A controls the restraint system (SRS). From the sensor data it determines in an accident, within milliseconds, which airbags and seatbelt pretensioners fire, and it checks the condition of the system continuously. If it reports a fault, the airbag warning light comes on.

The system runs in the background as soon as the vehicle is switched on.

If an accident has occurred, the control unit secures crash data and then locks itself.

Why does the control unit 28556 ZJ00A fail?

The most common cause: crash data stored after an accident, even if no airbag has been triggered. These data cannot be deleted with an ordinary diagnostic tool.

Further reasons include ageing electronics and cold solder joints. Other causes are ageing electronic components, moisture and corrosion on plugs, and voltage spikes.

Moisture and corrosion on plugs, as well as voltage spikes from a weak battery or jump-starting, can also lead to failure. At Airbag24 the crash data is deleted during the repair.

How can you tell that the 28556 ZJ00A is defective?

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

The light is the point at which the vehicle makes a fault visible.

Do not leave the warning unattended, and have the fault memory read out.

Which vehicles is the 28556 ZJ00A fitted in?

The airbag control unit 28556 ZJ00A is fitted in these vehicles: Nissan Titan A60 (2004-2015).

The models in detail:

• Nissan Titan A60 (2004-2015)

Compare the part number on the label with this page, so you know that you have the matching unit. Have the fault memory read out in advance, because only it shows whether the control unit itself is defective or whether a plug or a 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 28556 ZJ00A work?

First have the fault memory read out, enclose the log, then disconnect the battery and only then remove the control unit. Afterwards create a repair order online and send in the well-packed unit. Airbag24 checks it on the test bench, replaces defective components, deletes the crash data and carries out a function test; processing usually takes 3–4 working days.

The log and the repair order belong in the consignment.

After the function test you receive your own unit back. 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 28556 ZJ00A get to Airbag24?

Send the control unit to Airbag24 as a parcel yourself, or book a UPS collection for an extra charge. After the repair Airbag24 returns the unit to you by UPS.

Pack the printed repair order into the parcel and cushion the unit shock-proof.