: Uses high-accuracy volumatic air pressure or ultrasonic movement sensors to detect cabin break-ins.
Overview
Ground-switching triggers; diode isolation is required for split circuits. Fuel Pump or Starter Solenoid relays cobra 3865 manual
A high-power siren with its own battery triggers an alarm if the vehicle's main battery is disconnected or wires are cut. Standard Operation
: The system typically arms when you lock the doors with your factory remote. A "settle" or courtesy period of approximately 40 seconds occurs after arming (indicated by a solid LED) before the sensors become fully active. : Uses high-accuracy volumatic air pressure or ultrasonic
: Contains an internal power source that triggers if wires are cut. Operating Instructions Arming the System
If you experience frequent false alarms, the ultrasonic sensitivity may be set too high. This usually requires a professional installer to adjust via the main control unit. Conclusion Standard Operation : The system typically arms when
If your remote fails or the battery dies, you can disarm the system using your unique 4-digit PIN code.
The Cobra 3865 system, designed by Vodafone Automotive (formerly Cobra Electronics), typically includes: The central brain of the system. Digital Siren: A compact, high-performance siren.
The Cobra 3865 often relies on vehicle-specific harnesses (e.g., Citröen, Fiat) to simplify installation, as shown in related Cobra 3860 documentation . 3. Cobra 3865 Operational Procedures
For more detailed technical support, you can search for legacy product support at Cobra Support .