Airbag control unit with part number 51755094

What does the airbag control unit 51755094 do?

The airbag control unit 51755094 controls the restraint system (SRS) for Fiat. It processes the signals from the crash sensors and decides in an accident within milliseconds which airbags and seatbelt pretensioners are triggered.

In addition, it monitors the system continuously and shows faults via the airbag warning light.

After an accident it stores crash data and locks itself.

Why does the control unit 51755094 fail?

Stored crash data are the most common cause with the 51755094, even if no airbag has triggered. Other causes are aged electronics, cold solder joints, moisture and corrosion, and voltage spikes.

Crash data cannot be erased with a normal diagnostic tool. They stay in the control unit until Airbag24 removes them during the repair.

Aged components and cold solder joints can disrupt operation. Moisture and corrosion at plug connectors impair the contact, and voltage spikes arise, for example, from a weak battery or from jump-starting.

How can you tell that the 51755094 is defective?

A defect on the 51755094 shows up at the airbag warning light, which stays on permanently or intermittently. Also typical are an error message in the instrument cluster, a diagnostic tool without connection and a fault memory that cannot be erased. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

• Airbag warning light in the instrument cluster stays on permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool gets no connection to the control unit
• Fault memory cannot be erased

Do not leave the warning unattended; have the fault memory read out promptly.

Which vehicles is the 51755094 fitted in?

The control unit 51755094 is intended for Fiat. It is fitted in these vehicles: Fiat Linea 323 (2007-2011).

Overview of the models:

• Fiat Linea 323 (2007-2011)

A comparison of the part number on the label with this page shows only whether you have removed the right unit, nothing more. Whether the control unit is defective or a plug or a cable causes the fault is shown only by the fault memory, which you have read out beforehand.

For the same vehicles, we also repair control units with the part numbers 1480999080, 3859878, 51701716, 51918058, 550539700.

How does the repair of the 51755094 work?

First read out the fault memory, attach the log and disconnect the battery; only then remove the control unit 51755094. Inspection, repair and function test at Airbag24 usually take 3–4 working days.

Only after the removal do you create a repair order online, and then you send the unit in well packed.

At Airbag24 the unit is inspected on the test bench, defective components are replaced where needed, stored crash data are erased, and a function test follows.

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 51755094 get to Airbag24?

You send the control unit 51755094 as a parcel or book UPS collection for an extra charge. Airbag24 sends the repaired unit back by UPS.

The printed repair order goes into the parcel, and the unit is packed shock-proof.