Airbag control unit with part number 1390298080

What is the function of Airbag Control Unit 1390298080?

The airbag control unit with part number 1390298080 is the central control module for the passive safety system in the Fiat Ducato 244 (2001–2006). Its primary task is to process signals from vehicle sensors, ensuring that airbags and seatbelt pretensioners are deployed precisely and at the right moment in the event of a crash.

As the “brain” of the restraint system, this control unit continuously monitors all connected components, from crash sensors to airbag modules. It analyzes acceleration and deceleration data to reliably detect a collision and activate the necessary protective measures for occupants.

The proper functioning of this component is essential for vehicle safety. It is specifically designed for models such as the Fiat Ducato 244 and similar vehicles like the Citroën Jumper, ensuring flawless operation of the entire airbag system in these applications.

Why does Control Unit 1390298080 fail?

The most common causes of failure for Control Unit 1390298080 include internal electronic faults, indicated by error codes such as B0100-49 (internal ECU fault), as well as stored crash data after an accident that locks the unit. Defects in the power supply (DTC 0002) or communication issues are also typical.

A primary defect involves internal circuit board failures. These electronic malfunctions often result in error codes like B0100-49 or the general DTC 0001 (control unit defective), which remain logged in the fault memory and cannot be cleared permanently. Such errors prevent proper monitoring of the safety system.

Following a crash, the control unit stores so‑called crash data. This data permanently locks the unit to prevent reuse without professional diagnostics. Even if the vehicle appears only slightly damaged externally, the control unit must be professionally reset before it can be reactivated.

Additional causes may include faulty power supply triggering DTC 0002, or software-related issues. External factors such as water damage or severe mechanical shocks can also lead to total failure. The component is also known under variant 01390298080 or, for Citroën models, as 1393755080.

How do you recognize a defect in 1390298080?

A defect in Airbag Control Unit 1390298080 typically manifests as a constantly illuminated or intermittently flashing airbag warning light on the instrument cluster. Often, a diagnostic tool can no longer establish communication with the control unit, or unerasable error codes appear.

The most obvious sign for the driver is the activated airbag warning light. This indicates a malfunction in the safety system and suggests that airbags might not deploy in the event of a crash. Ignoring this warning poses a significant safety risk.

In the workshop, a defect often becomes apparent when the control unit becomes unresponsive. Diagnostic attempts fail because stable communication via the OBD interface cannot be established, pointing to a serious internal fault.

When reading out error codes, entries such as B0100-49 (ECU internal electronic fault), DTC 0001 (control unit defective), or DTC 0002 (faulty power supply) clearly indicate a defect within the control unit itself. These errors generally cannot be resolved simply by clearing them.

In which vehicles is Control Unit 1390298080 installed?

The airbag control unit with part number 1390298080 is primarily used in the Fiat Ducato model series 244, produced between 2001 and 2006. It is also found in identical models such as the Citroën Jumper from the same period.

At Airbag24, we repair Control Unit 1390298080 for the following specific models:

Fiat: Ducato (series 244, manufactured 2001–2006) with engine options including 2.0 8V, 2.0 JTD 8V, 2.3 JTD 16V, and 2.8 JTD 8V

Citroën: Jumper (identical models from the corresponding years)

How does the repair of 1390298080 proceed at Airbag24?

Repair at Airbag24 begins with the professional removal of the control unit from the vehicle. After submission, our technicians analyze the unit to determine the exact cause of the fault—whether it’s an electronic defect or stored crash data. Subsequently, restoration takes place through reprogramming and replacement of defective components.

For prompt processing, it is recommended to read out the fault memory before removal and enclose the printout with the package. The removed control unit should be securely packaged for transport and sent to us along with the completed repair form.

Upon receipt at Airbag24, our specialists perform a comprehensive diagnosis to precisely identify the source of the fault. Depending on the nature of the damage, repairs may involve fixing internal electronic faults, erasing crash data, or reprogramming the control unit.

Finally, each repaired control unit undergoes a meticulous functional test to ensure flawless operation. We provide a 12-month warranty on every repair.

What shipping options are available?

You can either send your defective control unit to Airbag24 free of charge yourself, or arrange a convenient UPS pickup at your preferred location. For returns, we offer free standard UPS shipping. For those in a hurry, express options—including cash-on-delivery—are also available.

For sending the item to us, you have two choices: you can ship it directly to us yourself, or use UPS’s convenient pickup service, which collects the device right from your doorstep.

After successful repair, we’ll ship the control unit back to you. You can choose from the following options:

Free standard UPS shipping is our default option. If you need the part returned more quickly, we offer UPS Express shipping. Both options are also available with cash-on-delivery. Alternatively, you can pick up the repaired control unit in person at our facility.