Cobra 4160 Alarm Wiring Diagram -

Even with the wiring diagram, you need to program the alarm. The Cobra 4160 is programmed using the Valet/Override switch (a small push button usually wired to a black pair of wires). Follow these steps:

Common programmable features:

Pin 2 (Black Wire): Chassis Ground

| Problem | Likely Cause | Fix | | :--- | :--- | :--- | | Alarm arms but doesn't trigger | Wrong door trigger type | Swap Blue (negative) to Green (positive) or vice versa. | | Siren is weak or silent | Bad ground on siren black wire | Run siren black directly to chassis. | | Alarm won't arm (LED solid) | Valet mode active | Turn ignition on/off 3 times, press valet button. | | Starter kill works but car won't start | Wires reversed on White/White-Black | Swap them. | | Parking lights flash but don't stay on | Low current output | Use an external relay (30A automotive relay). | cobra 4160 alarm wiring diagram