Peugeot 308 SW III airbag control unit repair

What is a Peugeot 308 SW III airbag control unit?

The Peugeot 308 SW III airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It precisely monitors signals from sensors, controls the deployment of up to six airbags, stores important crash data, and ensures the proper functioning of all airbag modules in the vehicle for your safety.

This module is a critical electronic unit specifically designed for the third-generation Peugeot 308 SW. It coordinates the entire functionality of the SRS (Supplemental Restraint System).

The control unit processes signals from acceleration sensors in the vehicle to detect a collision. It works closely with other safety systems such as seatbelt warning and brake assist to maximize occupant protection.

Why is the Peugeot 308 SW III airbag control unit defective?

A defect in the Peugeot 308 SW III airbag control unit often occurs because irreversible crash data is stored after an accident or internal components fail. Problems such as communication errors, overvoltage damage, or water ingress can also lead to failure, making a professional Peugeot 308 SW III airbag control unit repair essential.

After an accident, the airbag control unit permanently stores crash data, resulting in the module being locked. This "hard code" like B1649 cannot be erased with simple diagnostic tools and requires specialized processing.

Other causes of a defect can be internal circuit errors (e.g., B1015, B1139) or communication problems. Faulty wiring or corroded connectors often lead to codes like B1000.

A failure of the airbag control unit impairs the entire function of the restraint system. This can seriously endanger the safety of the occupants and requires immediate Peugeot 308 SW III airbag control unit repair .

Common error codes for Peugeot 308 SW III airbag control unit repair

When repairing the Peugeot 308 SW III airbag control unit, specific error codes like B1000 or B1649 are crucial, as they directly indicate problems within the airbag control unit. These codes often indicate communication errors, internal module defects, or permanently stored crash data that require precise diagnosis and professional reset.

These code-specific errors occur exclusively in the airbag control unit itself:

• B1000: Control unit communication error → Problems in data transmission, often caused by wiring or connectors.
• B1015: Airbag control module error → Internal defect or module malfunction.
• B1139: Error within the SRS module → Generalized internal circuit or software error in the control module.
• B1193: Airbag control unit related error → A specific problem that can be directly attributed to the airbag control unit.
• B1206: Airbag RCM (Restraint Control Module) Error → Error in the restraint system module that controls the airbags.
• B1342: SRS (Supplemental Restraint System) Fault → A critical fault within the entire supplemental restraint system, originating from the control module.
• B1620: SRS system error → Generalized error indicating a malfunction of the airbag control unit.
• B1649: Crash data stored in airbag control module (after accident) → This code indicates that the control module has registered an impact and stored a hard code that requires a reset service.

Diagnosing these codes requires special OBD-II diagnostic tools. A professional service center can read these error codes and, where possible, clear them or reset the control unit.

What part numbers are available for the Peugeot 308 SW III airbag control unit repair?

For a successful and safe Peugeot 308 SW III airbag control unit repair, knowing the exact OEM part numbers is essential, as they ensure full compatibility with your vehicle. These verified original Peugeot part numbers help identify the correct replacement module and avoid serious safety risks.

The following OEM part numbers are 100% verified and fit the Peugeot 308 SW III. They refer to genuine parts from Peugeot or their original equipment manufacturers, such as Bosch or Autoliv.

• 9665100080: Peugeot Original – Compatible with 1.6 HDI engine code 9HX, approx. year of manufacture 2009.
• 610714900: Peugeot Original – Also suitable for 1.6 HDI engine code 9HX, approx. year of manufacture 2009.
• 9674291480: Peugeot Original – Compatible with diesel models, e.g. engine code 9H05, year of manufacture 2012.
• 619763800: Peugeot Original – Fits diesel models from 2012.
• 9673383480: Peugeot Original – Verified part number for 1.6 HDI variants of the 308 SW III.
• 619906500: Peugeot Original – Another verified OEM number for 1.6 HDI models.

These part numbers are crucial for ensuring the correct function of the airbag system after repair or replacement. They are relevant for various engine variants (petrol, diesel, mild hybrid) and model years of the Peugeot 308 SW III.