Airbag control unit with part number 00052055640

What does the airbag control unit 00052055640 do?

The airbag control unit 00052055640 carries out the evaluation of the restraint system (SRS) in the Fiat. In an accident it decides within milliseconds which airbags and seatbelt pretensioners are triggered. After an accident, it stores crash data and locks itself.

The crash sensors continuously supply the unit with measured values, which it constantly checks for plausibility. If a fault is detected, the airbag warning light in the instrument cluster lights up.

Only the repair lifts the lock.

Why does the control unit 00052055640 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered; a normal diagnostic tool does not remove this data. Aged electronic components, dry solder joints, moisture and corrosion at plug connections, and voltage spikes are also involved.

Stored crash data is therefore no indication that an airbag actually triggered.

Electronic components can age over time. Dry solder joints, moisture at plugs and corrosion disturb the connections, and voltage spikes, for example from a weak battery or a jump start, stress the circuit.

How can you tell that the 00052055640 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and a fault message appears in the instrument cluster. In addition, the diagnostic tool gets no connection to the control unit, and the fault memory cannot be cleared.

The light indicates the defect, and it must therefore be taken seriously. As long as the defect exists, airbags and seatbelt pretensioners may not trigger in an emergency.

Anyone who sees the message should have the system checked promptly.

Which vehicles is the 00052055640 fitted in?

The 00052055640 is fitted in these vehicles: Fiat Tipo 356 (2016-2020).

The assignment to vehicles for this control unit is recorded in a list:

• Fiat Tipo 356 (2016-2020)

Comparing the part number on the label of the removed unit with this page only ensures that it is the correct unit. Have the fault memory read out before removal. Only this log shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 00052090728, 156348104, 208055, 52017547.

How does the repair of the 00052055640 work?

Processing at Airbag24 typically takes 3–4 working days. During the repair of the 00052055640, you first read out the fault memory and enclose the log, then disconnect the battery. Only then remove the control unit and create a repair order online.

You send in the well-packed unit. Airbag24 checks it on the test bench, replaces defective components, erases stored crash data and carries out a function test.

Afterwards the unit goes back 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 00052055640 get to Airbag24?

You send the control unit 00052055640 in as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns the unit to you by UPS.

The printed repair order goes into the parcel, and the unit is packed in a shock-resistant way.