Airbag control unit with part number 1366119080

What is the function of Airbag Control Unit 1366119080?

The Airbag Control Unit 1366119080 is the central control module of the occupant protection system (SRS) in vehicles such as the Peugeot Boxer and Citroën Jumper/Relay. It processes data from acceleration sensors to precisely deploy airbags and seatbelt pretensioners in the event of a crash. It is also interchangeable with several alternative part numbers, including 1608428080 or 1370978080.

As the brain of the passive safety system, this module continuously monitors all connected components, including crash sensors, airbag modules, seatbelt pretensioners, and seat occupancy detectors. In the event of a collision, it determines within milliseconds whether and how extensively to activate the restraint systems, ensuring optimal protection for occupants.

Technical compatibility is ensured through a range of equivalent OEM part numbers. The 1366119080 control unit can be replaced by or compared with the following numbers: 1608428080, 1370978080, 1606936380, 1356791080, 1358991080, and 1357312080. This information is crucial for accurate identification in the workshop.

Why does Airbag Control Unit 1366119080 fail?

A failure of the 1366119080 control unit is usually caused by crash data stored after an accident, which permanently locks the system. Other causes include internal electronic faults—often due to moisture or aging—that result in error codes such as B0100 (internal ECU fault), B0100-49, or FFFF, preventing communication.

Following a crash, the control unit irrevocably writes so‑called crash data into its internal memory. This lockout ensures safety by preventing reuse without professional diagnostics. Even if no external damage is visible, the unit remains internally blocked and must be reset.

Common internal defects manifest as specific error codes in the diagnostic report. Error code B0100 or B0100-49 indicates an internal electronic or electrical fault. Codes FFFF or 01 likewise signal an internal control unit defect. In such cases, the root cause often lies in damaged components on the circuit board or errors in the EEPROM chip.

A rarer but more specific fault is code B101C, which reports an issue with the seatbelt buckle switch—even though the seatbelt pretensioner has already been replaced. This also points to an internal processing error within the control unit itself, rather than an external problem.

How do you recognize a defect in 1366119080?

A defective Airbag Control Unit 1366119080 primarily shows up as a constantly illuminated airbag warning light (SRS symbol) on the instrument panel. Communication via the OBD interface is often lost, preventing diagnostic tools from accessing the module. In some cases, the stored vehicle identification number (VIN) may also be missing.

The most noticeable symptom is the active airbag warning light. After starting the vehicle, it doesn’t just flash briefly—it stays on continuously or intermittently. This is a clear indication that the entire occupant protection system is disabled and will not function in the event of a crash.

Another serious sign is complete loss of communication. Workshops using diagnostic equipment (e.g., from Gutmann or Bosch) cannot establish a connection to the airbag control unit. Reading or clearing error codes becomes impossible, complicating diagnosis.

An active fault in the airbag control unit poses a significant safety risk and inevitably results in failing the main inspection (TÜV). Using simulators, resistors, or other bypass methods is life‑threatening and leads to the revocation of the vehicle’s operating permit.

In which vehicles is Airbag Control Unit 1366119080 installed?

The 1366119080 control unit is primarily used in vans from Peugeot and Citroën. These include the first and third generations of the Peugeot Boxer, as well as the Citroën Jumper and the identical Relay model from the second and third generations—including all facelifts up to the current model years.

At Airbag24, we repair the 1366119080 control unit for a wide range of models. Compatibility spans long production periods and various model updates. Examples include:

Peugeot: Boxer I (1994–2002), Boxer III (2006–2011), Boxer III 1st Facelift (2011–2014), Boxer III 2nd Facelift (2014–2024), and Boxer III 3rd Facelift (from 2023 onward).

Citroën: Jumper II (2001–2006), Jumper III (2006–2011), Jumper III 1st Facelift (2011–2014), Jumper III 2nd Facelift (2014–2024), and Jumper III 3rd Facelift (from 2023 onward).

Citroën (UK market): Relay I (1994–2002), Relay III (2006–2011), Relay III 1st Facelift (2011–2014), Relay III 2nd Facelift (2014–2024), and Relay III 3rd Facelift (from 2023 onward).

How is control unit 1366119080 professionally repaired?

At Airbag24, repair of control unit 1366119080 takes place after submission and technical analysis. The process includes professional erasure of crash data and elimination of internal faults through reprogramming of the control unit’s firmware. Defective electronic components are restored at the chip level to fully restore functionality.

The procedure ideally begins with a diagnosis at a specialized workshop to rule out external fault sources such as defective seat occupancy mats. After removal, the control unit is sent to Airbag24 along with an error log. Our technicians perform a comprehensive incoming inspection to pinpoint the exact cause of the fault.

Repair is carried out at the electronic level. Stored crash data is erased even when OBD communication is no longer possible. Internal errors are resolved by targeted reprogramming of memory chips. Defective components, such as processors or other electronic parts, are expertly replaced.

Following successful repair, the control unit is tested and fully functional again. It can usually be reinstalled in the vehicle without additional coding (plug-and-play). In some cases, only a single clearing of the vehicle’s fault memory may be required after installation. We provide a 12-month warranty on all repairs.

What shipping options are available at Airbag24?

You can either ship the package yourself for your control unit’s repair or arrange a convenient UPS pickup. After repair, Airbag24 offers free standard UPS shipping. For faster delivery, optional UPS Express shipping, cash-on-delivery shipments, or self-collection are available.

For outbound shipping, you have two options: You can pack the removed control unit yourself and send it to us, or drop it off locally. Alternatively, you can book a UPS pickup from your preferred location through our portal.

For returning the repaired unit, we offer several options. Free standard UPS shipping is our default choice. If you need the part back sooner, you can select UPS Express shipping. Both options are also available with cash-on-delivery. Alternatively, personal collection at our premises is also possible.