What is a Peugeot 207 SW I airbag control unit?
The Peugeot 207 SW I airbag control unit is the central safety unit in the vehicle, responsible for monitoring and triggering occupant restraint systems such as airbags and seatbelt pretensioners. It receives signals from crash sensors, stores relevant accident information, and ensures the rapid activation of all safety components in an emergency.
This electronic control unit, also known as the airbag ECU, is crucial to the vehicle's passive safety system. It processes a wealth of data in milliseconds to react correctly in the event of an impact.
Why is the Peugeot 207 SW I airbag control unit defective?
A Peugeot 207 SW I airbag control unit typically fails due to internal communication errors, crash data being saved after an accident, or a coherence error. Such defects often result in a permanently illuminated airbag warning light and block system functions until repaired.
A common cause is an "open circuit" in the airbag system, which indicates a fault in the control unit wiring or in the unit itself.
Crash data stored after an accident blocks the system and prevents the error memory from being erased until the data is professionally removed or the device is repaired.
Common error codes for Peugeot 207 SW I airbag control unit repair
When repairing the Peugeot 207 SW I airbag control unit, specific error codes often occur. These indicate internal problems or data stored after an accident. Typical codes include communication problems, open circuits in the airbag system, and internal coherence errors in the control unit itself.
- B1000 → Control unit communication error → Airbag ECU communication fault
- C608 → Airbag fault – Open circuit → Fault in the control unit line or in the control unit
- Coherence Fault → Coherence error control unit → Internal consistency error of the airbag control unit
- Crash data stored → Crash data is stored in the airbag control unit → System blocked after accident, warning light active
What part numbers are available for the Peugeot 207 SW I airbag control unit?
For Peugeot 207 SW I airbag control unit repairs, specific OEM part numbers are relevant, including both Peugeot/Bosch originals and Bosch references. These numbers identify the exact control unit for the first-generation Peugeot 207 SW and ensure compatibility during replacement or repair.
The most common OEM part numbers for the airbag control unit of the Peugeot 207 SW I are 9663593480-00 and 9665699780-00, often in conjunction with Peugeot or Bosch as the manufacturer.
Additional Bosch reference numbers such as 0285010555, 0285010112, 9665699680 and 0285010554 are also verified numbers for compatible control units.
Compatibility and years of manufacture of the Peugeot 207 SW I airbag control unit
The Peugeot 207 SW I airbag control unit is specifically designed for the first generation of the Peugeot 207 SW, model years from approximately 2007 to 2010. It is compatible with various engines, including the 1.4L petrol and 1.6L HDi diesel, to ensure broad vehicle coverage for airbag control unit repair.
These control units are designed for vehicle variants with 5-speed manual transmission.
Compatibility extends to different engine and equipment versions within the specified model period.
Installation position and connections of the Peugeot 207 SW I airbag control unit
The Peugeot 207 SW I airbag control unit is located in the vehicle interior, usually under the seat or in the center console. It features multi-pin connectors, particularly the yellow-labeled airbag connectors, and a CAN bus connection for communication with the vehicle's system.
Installation in this position ensures optimal connection to all sensors and airbags in the vehicle.
Airbag connectors are often gold-plated to ensure a consistent electrical connection and are designed to prevent reverse polarity and accidental deployment.
Advantages of Peugeot 207 SW I airbag control unit repair
The Peugeot 207 SW I airbag control unit repair offers a cost-effective and quick alternative to purchasing a new unit. It erases stored crash data and restores full functionality. Vehicle-specific codes are retained, avoiding the need for costly reprogramming and quickly getting the system operational again.
Professional repair services can usually restore the control unit to full functionality within a few business days.
Work on the airbag system is safety-critical and should only be performed by qualified personnel. The vehicle battery must be disconnected before removing the control unit.