Airbag control unit with part number 1336356080

What is the function of Airbag Control Unit 1336356080?

The Airbag Control Unit 1336356080 is the central control module for the Occupant Restraint System (SRS) in Fiat Ducato models. It processes signals from crash sensors to precisely deploy airbags and seatbelt pretensioners in the event of a collision. Additionally, it stores relevant crash data and monitors the functionality of all system components.

As the brain of the entire Airbag System (SRS), this control unit is responsible for evaluating real-time data from crash and acceleration sensors distributed throughout the vehicle. Based on this information, it determines within milliseconds whether and which restraint systems—such as front or side airbags, as well as seatbelt pretensioners—should be activated to provide optimal occupant protection.

An additional key function is storing crash data. Following an activation event, all relevant accident data is permanently saved in the device’s internal memory. This capability is crucial for accident analysis but also means that after a crash, the control unit becomes locked and must be repaired.

The control unit with part number 1336356080 is specifically designed for Fiat Ducato series 230, 244, and the E-Ducato 290. Since it is often unavailable as an original replacement part or extremely expensive, professional repair represents the most economical and reliable solution to restore full functionality of the safety system.

Why does Control Unit 1336356080 fail?

The most common cause of failure for Control Unit 1336356080 is the storage of permanent crash data after an accident, which results in the unit being locked. Other defects arise from internal electronic malfunctions, moisture ingress, faulty ground connections, or issues with the power supply, all of which can disable the entire airbag system.

Even if no airbags were deployed during a crash, the unit still records what is known as a “crash entry.” This entry is permanent and cannot be erased using standard diagnostic tools. Consequently, the warning light remains illuminated, and the entire SRS fails, making a successful technical inspection (TÜV) impossible.

Internal hardware defects are another frequent cause. Faulty electronic components, cold solder joints, or problems with the internal memory (EEPROM) can lead to total failure or sporadic malfunctions. Such defects often manifest as error code B0100, indicating an internal ECU fault.

External factors like moisture entering through vehicle leaks, corrosion at connector contacts, or a defective ground connection (error B0102-00) can damage the control unit’s sensitive electronics. Voltage fluctuations caused by a weak battery or jump-starting may also result in internal damage.

Similar failure patterns can occur in comparable control units. Related part numbers include, among others, 1371008080, 46858203, 1356791080, and 1357312080.

How do you recognize a defect in 1336356080?

A defect in Control Unit 1336356080 primarily manifests as a permanently or intermittently illuminated airbag warning light (SRS symbol) on the dashboard. Communication with the control unit via an OBD diagnostic tool is often impossible. Additionally, non-erasable error codes such as B0100 (internal fault/crash data) may be stored.

The clearest symptom is the persistently lit airbag indicator light. It does not turn off after starting the vehicle, signaling a serious issue within the safety system. This means that airbags and seatbelt pretensioners will no longer function in the event of a crash.

Another clear sign is the loss of diagnostic capability. When a workshop attempts to read the fault memory via the OBD interface, the control unit fails to respond, appearing either unreachable or not installed, thus preventing targeted troubleshooting.

The fault memory frequently contains specific, non-erasable error codes, including B0100 (internal ECU fault/full crash memory), B0102-00 (faulty ground connection), B1000 (communication error), or B101C (seatbelt lock switch). These codes directly point to a problem within or affecting the control unit.

Furthermore, cryptic messages may appear on the instrument cluster, such as “refer to the manual” or references to the “fuel shut-off valve.” In some cases, the vehicle identification number (VIN) stored in the control unit is also lost, further complicating diagnosis.

In which models is 1336356080 installed?

The Airbag Control Unit with part number 1336356080 is specifically installed in various Fiat Ducato series, including models 230, 244, and the E-Ducato 290. Airbag24 offers professional repair services for this control unit across all mentioned Fiat Ducato models and model years.

At Airbag24, we repair the control unit with part number 1336356080 for the following Fiat models:

Fiat Ducato 230 (model years 1994–2002)

Fiat Ducato 244 (model years 2001–2006), especially common in the 2.3 JTD and 2.8 JTD engine variants, as well as in flatbed and motorhome configurations (e.g., Hymer Camp).

Fiat E-Ducato 290

It is advisable to have a specialist workshop verify before removal whether the fault actually originates in the control unit itself, rather than in a peripheral component such as a defective seat occupancy sensor or a corroded connector—e.g., under the seats.

How does the repair of part number 1336356080 proceed?

The repair of control unit 1336356080 at Airbag24 begins with professional removal and shipment of the unit. Our technicians perform a detailed analysis, rectify internal electronic faults, and reset the stored crash data. Following successful final testing and with a 12-month warranty, the device is returned to you.

First, the vehicle’s fault memory should be read out and the diagnostic report printed. Before removing the control unit, disconnect the vehicle battery. In Ducato models, the unit is typically located in the rear compartment beneath a flap and secured with set screws. Ship the removed unit carefully packaged along with the fault report.

Upon receipt at Airbag24, the control unit undergoes systematic analysis. Our technicians inspect the electronics for visible damage such as moisture ingress and examine internal components using professional measurement equipment, precisely identifying the root cause of the issue.

The actual repair involves resetting the stored crash data and addressing all detected internal hardware defects. Defective parts are replaced with high-quality new components. Finally, the unit undergoes comprehensive functional testing to ensure compliance with manufacturer specifications.

After return shipping, the repaired control unit can be reinstalled in the vehicle. In most cases, it is immediately ready for use. If necessary, the vehicle’s fault memory must then be cleared. We provide a 12-month warranty on every repair.

What shipping options does Airbag24 offer?

For repairing your control unit, Airbag24 provides flexible shipping options. You can send the package yourself free of charge or arrange convenient UPS pickup at your preferred location. Return shipping is also free via standard UPS; express and cash-on-delivery options are available.

For sending your defective control unit, choose between free self‑shipping or convenient UPS pickup at a location of your choice, allowing you to have the package collected directly from your workshop or home.

Following successful repair, we promptly ship your control unit back. Standard UPS delivery is free and typically takes 1–3 business days. If faster service is required, UPS Express delivery is available, ensuring delivery within 1–2 business days.

For added flexibility, we offer both standard and express shipping with the option of cash-on-delivery. Alternatively, you may pick up your repaired control unit in person at our facility.