: Direction indicator/blinker outputs. These connect to the left and right indicator circuits.
Indicator/Turn signal outputs. These provide the flashes when arming or disarming. cobra 4160 alarm wiring diagram
. Each wire has a faint code printed on the end, which must be matched during installation. Once the alarm is fitted and those ends are cut, it becomes nearly impossible for a thief to identify which wire is the power, ground, or ignition cut-off simply by looking at them. The Late Bay Installation & Troubleshooting Tips : Direction indicator/blinker outputs
| Pin | Wire Color | Function | Connection Point | | :--- | :--- | :--- | :--- | | 1 | | Siren Output (+12V) | Red wire of the siren. Black siren wire to ground. | | 2 | Blue | Negative Trigger (-) | Door pins that ground when door opens (most cars). | | 3 | Green | Positive Trigger (+) | Door circuit that gets +12V when door opens (older Fords, some GM). | | 4 | Violet | Trunk/Hood Trigger | (-) negative trigger for pin switches on trunk or bonnet. | | 5 | Grey | Shock Sensor Input | Connect to the sensor's signal wire. | | 6 | Black/White | Dome Light Output | Connects to car's interior light circuit (ground switched). | | 7 | White/Red | Starter Disable Output | Optional ground output when armed. | | 8 | Brown/White | Flashing Light Output | (+) positive output for parking lights. | | 9 | Red/White | Auxiliary Output 1 (Ch 3) | Remote boot/trunk release (requires relay). | | 10 | Blue/Black | Auxiliary Output 2 (Ch 4) | Optional (e.g., window roll-up). | | 11 | Green/Red | Tachometer Input | Engine RPM wire (for anti-grind or remote start variants). | | 12 | N/A | Not used | | These provide the flashes when arming or disarming
The Cobra 4160 is a sophisticated vehicle security system utilizing an electronic control unit (ECU) to monitor vehicle status and control critical circuits. Unlike basic alarms, the 4160 features a double immobilization circuit, requiring the interruption of two independent engine management signals to allow starting. Understanding the specific pin-out and wire gauge is essential for technicians to ensure reliability and prevent vehicle electrical damage.