Description
Airbag Control Unit For Citroën Berlingo I And Peugeot Partner I
Product Overview
This airbag control unit (SRS Module) is designed for early-generation Stellantis small vans and delivers the central monitoring and deployment control for the vehicle restraint system. It monitors crash sensors, seatbelt pretensioners and initiates airbag deployment when required. The unit is commonly referenced by the original product codes and fits first‑generation Citroën Berlingo and Peugeot Partner models.
Key Benefits
- Direct replacement for original equipment control units used on Berlingo I / Partner I models.
- Essential safety component that ensures correct functioning of airbags and pretensioners.
- Valuable for professional workshops and experienced DIY mechanics performing SRS repairs after an incident.
How The Unit Works
The airbag control unit continuously evaluates inputs from accelerometers, impact sensors and buckle switches. When a sensor pattern matches a severe impact, the unit triggers the appropriate airbags and seatbelt pretensioners within milliseconds to protect occupants. It also stores fault codes in memory that can be read with diagnostic tools to help locate wiring or sensor failures.
Replacement Procedure
Replacing an airbag control unit requires care and adherence to safety rules. Typical replacement steps (summary):
- Park vehicle on level ground, engage parking brake and remove ignition key.
- Disconnect the negative battery terminal and wait at least 10 minutes to allow SRS capacitors to discharge.
- Locate and remove the trim or fasteners shielding the control unit (usually under the central console or under the passenger seat depending on model).
- Unplug electrical connectors carefully, noting locking tabs and connector orientation.
- Unscrew and remove the old unit, fit the replacement in the correct orientation and resecure with original fasteners.
- Reconnect connectors, reassemble trims and reconnect the battery.
- Clear stored SRS fault codes and perform a full diagnostic check with a suitable tool to confirm airbag system readiness.
Installation Recommendations
- Always Disconnect Battery Before Work: Prevent accidental deployment by isolating the battery and observing the manufacturer’s recommended waiting time (commonly 10–15 minutes).
- Use Proper Diagnostic Equipment: After replacement, read and clear SRS fault codes and verify system status with a compatible diagnostic tester.
- Handle With Care: Airbag modules and SRS units contain pyrotechnic elements and sensitive electronics; avoid impact, moisture and electrostatic discharge.
- Follow Manufacturer Procedures: Retain original mounting orientation and torque values where specified to ensure correct sensor referencing.
Why This Part Fails
The airbag control unit most commonly fails or requires replacement for the following reasons:
- Crash Activation: Deployment during a collision renders the unit unusable and necessitates replacement.
- Water Ingress And Corrosion: Moisture reaching connectors or the unit causes corrosion and intermittent faults.
- Electrical Damage: Short circuits, improper jump-starting or wiring faults can damage internal electronics.
- Connector Or Wiring Faults: Broken pins, poor contacts or damaged wiring to sensors produce fault codes linked to the SRS unit.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën Berlingo I, Peugeot Partner I
- Product Codes: 9637176880
- Additional Numbers: 6547WA
Compatibility & Notes
Intended for Citroën Berlingo I and Peugeot Partner I platforms. Compatibility often depends on build date and vehicle specification; check the product codes against the vehicle’s original part number when selecting a replacement. Use professional diagnostic equipment to confirm correct operation after installation.
