Airbag control unit with part number 28556 ZR00C

What does the airbag control unit 28556 ZR00C do?

The airbag control unit 28556 ZR00C is the central control unit of the SRS restraint system for Nissan. It captures the signals from the crash sensors, selects the appropriate airbags and seatbelt pretensioners within milliseconds in a crash, and monitors the system continuously. Detected faults appear on the airbag warning light.

After an accident, the unit stores crash data and locks itself. The lock ends only with the repair.

During normal operation the monitoring runs unobtrusively, without you noticing anything.

Why does the control unit 28556 ZR00C fail?

The most common cause is crash data stored after an accident, even if no airbag has fired. Further causes are ageing components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data stays in the unit because an ordinary diagnostic tool cannot remove it. Airbag24 deletes it specifically during the repair.

Ageing electronics, cold solder joints and moisture at the plugs act independently of an accident. Strong voltage spikes, for example from a weak battery or a jump start, put additional strain on the circuit.

How can you tell that the 28556 ZR00C is defective?

A defect shows up on the airbag warning light in the instrument cluster, which lights up permanently or intermittently, on a fault message there, on a missing connection between diagnostic tool and control unit, and on a fault memory that cannot be cleared. Airbags and seatbelt pretensioners may then not trigger in an emergency.

The airbag warning light draws your attention to the condition immediately. For this reason, it is worth looking at the fault messages promptly and booking a check.

Which vehicles is the 28556 ZR00C fitted in?

The control unit 28556 ZR00C is fitted in this vehicle: Nissan Titan A60 (2004-2015).

The matching model for this part number appears in the following line:

• Nissan Titan A60 (2004-2015)

Compare the part number on the label of the removed unit with this page so that you have the right unit. Have the fault memory read out beforehand. Only this log shows whether the control unit is defective or whether a connector 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 28556 ZR00C work?

First, have the fault memory read out and enclose the log. Then disconnect the battery and only afterwards remove the control unit. Then create the repair order online and send the packed unit in. At Airbag24, processing usually takes 3–4 working days.

The sequence is mandatory so that the airbag system is handled safely. Removal without these preceding steps is not intended.

Airbag24 checks the unit on the test bench, replaces defective components, deletes the stored crash data and carries out a functional test. Then your own unit is returned.

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 ZR00C get to Airbag24?

You send the control unit 28556 ZR00C as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Enclose the printed repair order in the parcel and pack the control unit shock-proof.