Airbag control unit with part number 00052055639

What does the airbag control unit 00052055639 do?

The airbag control unit 00052055639 is the central control unit of the restraint system for Fiat, which decides in an accident on airbags and seatbelt pretensioners. To do this it evaluates the signals from the crash sensors.

Outside an accident, the control unit monitors the entire system. A detected fault is stored in the fault memory and shown via the airbag warning light.

After an accident the unit writes crash data and then goes into a locked state. Only the repair ends this state.

Why does the control unit 00052055639 fail?

Crash data stored after an accident is the most common cause, even if no airbag has fired. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

The data cannot be erased with a standard diagnostic tool. Airbag24 erases it during the repair, before the unit goes back to you.

Aged electronics eventually fail, and cold solder joints produce changing contacts. The risk grows with moisture and corrosion in the plugs.

Voltage spikes stress the circuit, for example when the battery is weak or a jump lead is connected.

How can you tell that the 00052055639 is defective?

Typical signs are the airbag warning light in the instrument cluster, a fault message in the instrument cluster, no contact between the diagnostic tool and the control unit, and a fault memory that cannot be cleared.

• The airbag warning light in the instrument cluster stays on permanently or flickers intermittently.
• The instrument cluster shows a fault message.
• The diagnostic tool does not establish a connection to the control unit.
• The fault memory cannot be cleared.

While the fault persists, airbags and seatbelt pretensioners may not trigger in an emergency. Therefore have the system checked promptly.

Which vehicles is the 00052055639 fitted in?

These vehicles are equipped with the 00052055639: Fiat Tipo 356 (2016-2020).

The vehicles in detail are listed here:

• Fiat Tipo 356 (2016-2020)

Whether the part number on the label matches this page only tells you about the unit itself. It does not tell you whether the unit is defective.

Therefore have the fault memory read out before removing the unit. Only the read-out fault memory shows whether the control unit is affected or whether a plug or cable is involved.

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

How does the repair of the 00052055639 work?

Processing at Airbag24 usually takes 3–4 working days. Beforehand, have the fault memory read out, enclose the log and disconnect the battery.

Only then remove the control unit, create a repair order online and pack the unit well before sending it in.

Airbag24 checks the control unit on the test bench and replaces defective components. The crash data is then erased and a function test is carried out, after which your own 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 00052055639 get to Airbag24?

You can send a parcel yourself, or you book a UPS collection for an extra charge. The control unit 00052055639 goes back to you by UPS.

Pack the control unit shock-proof and put the printed repair order in the parcel.