What is a Peugeot 405 II airbag control unit?
The Peugeot 405 II airbag control unit is the central safety unit that activates all occupant restraint systems, such as airbags and seatbelt pretensioners, as needed in the event of an accident. It continuously monitors sensors, stores relevant crash data, and thus ensures the proper functioning of the entire SRS system.
This electronic module is responsible for controlling and monitoring the Supplemental Restraint System (SRS). It processes signals from various crash sensors to accurately detect an impact.
The unit is typically installed centrally in the vehicle, often under the dashboard or a seat, to ensure optimal protection and short signal paths. It communicates via the OBD2 interface for diagnostics and error reading.
Why is the Peugeot 405 II airbag control unit defective?
The Peugeot 405 II airbag control unit can fail for a variety of reasons, often due to internal electronic errors, aging-related wear and tear, or after an accident in which crash data was stored in the memory, preventing a reset. Repair is often the most efficient solution when the airbag control unit is faulty.
Typical signs of a faulty airbag control unit include a permanently illuminated airbag warning light on the dashboard or the inability to clear error codes. This indicates a problem within the unit that requires professional diagnosis.
Malfunctions in the connected sensors or ignition circuits can also lead to an error message indicating the control unit as the cause. A detailed investigation is necessary to identify the exact cause of the failure.
Common error codes for Peugeot 405 II airbag control unit repair
When diagnosing a faulty Peugeot 405 II airbag control unit, specific error codes may occur that indicate internal problems or communication issues within the control unit itself. These codes are crucial for an accurate diagnosis and a successful Peugeot 405 II airbag control unit repair.
- B1015 → Faulty airbag control unit → Internal error in the airbag ECU.
- B1139 → Airbag control unit error → Malfunction in the internal logic or hardware of the ECU.
- B1193 → Airbag control unit related error → General malfunction reported directly by the control unit.
- B1206 → RCM control unit error → Problem in the Restraint Control Module, the central control unit.
- B1342 → SRS system error → Generalized error in the Supplemental Restraint System, often caused by the ECU.
- B1620 → SRS diagnostic error → Self-diagnosis error of the airbag control unit, which affects its function.
These error codes can be read with special diagnostic tools such as the PP2000 and help pinpoint the nature of the airbag control unit malfunction. They explicitly indicate problems with the airbag ECU itself, not with external sensors.
Correcting these codes is an important step in the Peugeot 405 II airbag control unit repair. After the cause has been corrected, the error log must be erased using a suitable device to restore functionality.
What part numbers are available for the Peugeot 405 II airbag control unit repair?
For Peugeot 405 II airbag control unit repair, exact identification of the part number is crucial, with the Autoliv OEM part number 550 57 81 00 often mentioned in connection with Peugeot models of this era, although 100% confirmation for the 405 II specifically is difficult.
This research indicates the Autoliv OEM part number 550 57 81 00 as a relevant number for Peugeot airbag control units. Although this is primarily listed for the Peugeot 306, it may also be relevant for the 405 II due to its close model relationship.
A definitive OEM part number applicable exclusively to the Peugeot 405 II airbag control unit could not be clearly found in the common, publicly accessible sources. This underscores the need for a precise vehicle identification number (VIN) query.
Due to the specific nature of airbag control units, exact part numbers are often proprietary and not always readily available. To ensure the correct part for your Peugeot 405 II airbag control unit repair, we recommend contacting your Peugeot dealer, providing the vehicle identification number (VIN).