Airbag control unit with part number 51765170

What does the airbag control unit 51765170 do?

The airbag control unit 51765170 coordinates the airbags and seatbelt pretensioners of Fiat as the SRS control unit. It reads the crash sensors, evaluates an impact within milliseconds and triggers the appropriate restraint devices. After an accident it secures crash data and locks itself.

In addition it checks the components involved for faults continuously. Detected faults appear via the airbag warning light in the instrument cluster, so you notice them in everyday use.

The unit thus has a dual role: it decides in an emergency and monitors permanently.

Why does the control unit 51765170 fail?

The most common cause with 51765170 is crash data that remained stored after an accident, even when no airbag has triggered. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

A normal diagnostic tool cannot remove the crash data. Airbag24 erases them as part of the repair.

Voltage spikes occur, for example, with a weak battery or during jump-starting. Moisture gradually attacks plug connections, and many faults start exactly there.

How can you tell that the 51765170 is defective?

A defect in the 51765170 shows itself when the airbag warning light in the instrument cluster lights up permanently or only intermittently. A fault message that you can read there also appears, and the diagnostic tool finds no connection to the control unit.

If the fault memory cannot be cleared, that is a further signal. In an emergency airbags and seatbelt pretensioners might then not trigger, which is why you should not postpone the check.

Which vehicles is the 51765170 fitted in?

The control unit 51765170 is fitted in these vehicles: Fiat Idea 350 (2004-2005) and 350 Facelift (2005-2008).

This list shows the vehicles to which the part number is assigned:

• Fiat Idea 350 (2004-2005)
• Fiat Idea 350 Facelift (2005-2008)

The following steps will help you. Compare the part number on the label of your removed unit with this page, because that only confirms that it is the right unit. Have the fault memory read out beforehand, because only this result 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 51716748, 51752040, 51760853, 51816902, 51816903, 51816904.

How does the repair of the 51765170 work?

The repair of the 51765170 takes 3–4 working days at Airbag24 in the usual case, counted only for checking, repairing and testing in-house. The unit is examined on the test bench, defective components are replaced and stored crash data is erased.

First have the fault memory read out and attach the log. Then disconnect the battery, remove the control unit and create a repair order online before you send in the well-packed unit.

Finally Airbag24 carries out a function test, and your own unit is 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 51765170 get to Airbag24?

You have the choice between sending a parcel and a UPS collection for an extra charge. Airbag24 handles the return by UPS.

The unit must be packed shockproof, and the printed repair order goes into the parcel.