Connects to a clean, unpainted metal chassis ground point. A loose ground is the number one cause of intermittent alarm triggering and weak siren chirps.
These wires provide the foundational current required to run the alarm module and drive the siren.
2. Positive Triggered Systems (Many older Ford and GM vehicles)
Every 4000 series alarm has a unique Personal PIN code . This code is required to disarm the system manually if the remote fails. Ensure you locate the PIN label (often on the alarm box itself) and keep it secure.
Trigger Input (-) - Receives the negative pulse from the sensor to trip the alarm. Troubleshooting and Installation Tips cobra 4160 alarm wiring diagram
Positive Door Input (+). Used primarily for specific vehicles (like older Fords) where door pins output +12V when opened. Note: Use either Green or Purple, never both.
3. Alternating Polarity / Direct Motor Drive (Vehicles without a factory module)
Wire Routing: Run alarm wiring alongside factory harnesses whenever possible. Use protective looming to prevent chafing against sharp metal edges under the dash.
Over-sensitive ultrasonic cabin sensors or a loose bonnet pin switch [1.9, 1.13]. Connects to a clean, unpainted metal chassis ground point
The Cobra 4160 can be integrated with the vehicle’s central locking system to provide convenient keyless entry along with security. The wiring requirements depend on the vehicle's existing locking architecture:
This is the second half of the puzzle. You need to know which color wire in your car's steering column or fuse box is the "ignition," which is the "starter," and which is the "constant 12V."
: Systems of this era often include an immobilization circuit intended to interrupt the starter or fuel pump signal. This requires precise identification of high-current wires. Safety Requirements for DIY Maintenance
The is part of the Cobra 4100 (Globe) series of modular alarm systems. While specific pinouts for every individual 4160 installation vary based on the vehicle and auxiliary features used, the core wiring follows the standard Cobra 4100 series color coding. Core Wiring Color Codes Ensure you locate the PIN label (often on
The Cobra 4160 is a modular vehicle security system designed to prevent theft through both audible alarms and electronic immobilization. It typically includes: (ultrasonic sensors). Perimeter monitoring (doors, bonnet, boot). Double-circuit immobilizer for engine protection. Central locking interface . 2. Cobra 4160 Alarm Wiring Diagram Schematic
A negative switched output that activates temporarily upon locking to signal an optional window closing module [1.9]. If unused, this wire must be safely insulated [1.9]. Component Placement and Installation Map
The system monitors the ignition feed to detect unauthorized attempts to start the vehicle.