Cobra 4160 Alarm Wiring Diagram
One of the most critical parts of the Cobra 4160 alarm wiring diagram is the starter kill relay. This prevents the engine from starting when the alarm is armed.
The Cobra 4160 uses a built-in relay or an external relay (depending on revision). Here is the logic:
Simplified wiring:
When the alarm is off, the relay connects pin 30 to 87a (starter works). When armed, the relay switches to open or ground, breaking the starter circuit.
| Pin | Wire Color | Function | Connection Point | | :--- | :--- | :--- | :--- | | 1 | Red | +12V Constant Power | Battery positive or thick constant wire at ignition switch. | | 2 | Black | Chassis Ground | Bare metal bolt under the dash (sand paint off). | | 3 | Yellow | Ignition Input | Ignition switch wire that shows +12V when key is in RUN and START. | | 4 | White | Starter Cut/Interrupt | Cut the starter wire. Connect one side to White, other side to White/Black. | | 5 | White/Black | Starter Cut (return) | See above. | | 6 | Orange | Accessory Output | Connects to the car's accessory wire (radio, wipers). | cobra 4160 alarm wiring diagram
For official wiring schematics, refer to Cobra Marine’s manual (Document #480-1027-P). This guide is for informational use only; always verify with a multimeter before connecting devices.
This is a technical guide for understanding and working with the Cobra 4160 car alarm wiring diagram. The Cobra 4160 is a classic "DIY-friendly" aftermarket alarm system. While the specific color codes can vary slightly between production batches, this guide covers the industry-standard wiring scheme used for this model. Pin 2 (Black Wire): Chassis Ground
⚠️ Safety Warning: Disconnect the negative terminal of your car battery before cutting or splicing any wires. If you are unsure about any step, consult a professional auto electrician.