Are you struggling with the wiring of your 72 Nova? If you are, then you have come to the right place. This article will provide you with a comprehensive guide on the 72 Nova wiring diagram. We understand that wiring can be complicated and confusing, so we have simplified it for you. We have provided you with diagrams, tables, and FAQs to make it easy for you to understand. Let’s dive in!
Understanding the 72 Nova Wiring Diagram
The 72 Nova wiring diagram can be a bit overwhelming, especially if you are not familiar with wiring diagrams. The wiring diagram is a blueprint that shows the electrical connections, wiring routes, and components of the electrical system of your 72 Nova. Understanding the wiring diagram is crucial when troubleshooting electrical problems or when upgrading your electrical system.
The wiring diagram has different symbols that represent different components, wires, and connections. For instance, a square box represents a switch, a circle represents a light, and a triangle represents a ground. It is important to understand these symbols to read the wiring diagram accurately.
Below is a table with some of the symbols you are likely to encounter in the 72 Nova wiring diagram:
| Symbol | Component |
|---|---|
| Square box | Switch |
| Circle | Light |
| Triangle | Ground |
| Rectangle | Connector |
Frequently Asked Questions about the 72 Nova Wiring Diagram
Q: Can I install an aftermarket stereo in my 72 Nova?
A: Yes, you can. However, you will need to understand the wiring diagram to install the aftermarket stereo. You will need to know the wire color codes and the wiring layout to make a proper connection.
Q: What size wire do I need for my headlights?
A: The size of the wire depends on the wattage of the headlights. It is recommended to use at least 14-gauge wire for headlights with a wattage of more than 55 watts. For headlights with a wattage of less than 55 watts, you can use 16-gauge wire.
Q: What is the purpose of the ignition switch?
A: The ignition switch is the main switch that controls the power to the electrical system of the car. It controls the power to the starter, alternator, and other electrical components of the car.
Now that we have covered the basics let’s dive into the detailed wiring diagram.
The 72 Nova Wiring Diagram
The 72 Nova wiring diagram is divided into sections to make it easy to understand. Each section has a different color to help you differentiate between the wires. The wiring diagram covers the entire electrical system of the car, including the engine compartment, dash, and rear lights.
Engine Compartment
The engine compartment section covers the wiring from the battery, starter, alternator, horn, and engine components such as the distributor, coil, and carburetor. The wiring from the battery goes through the starter solenoid before feeding the rest of the electrical system.
The alternator is wired to the battery through the voltage regulator. The stator wire from the alternator is connected to the voltage regulator, while the battery wire is connected to the starter solenoid. The voltage regulator regulates the voltage to the battery to prevent overcharging.
Ignition System
The ignition system includes the distributor, coil, and ignition switch. The ignition switch supplies power to the ignition system when turning the key to the “on” position. The distributor distributes the high voltage from the coil to the spark plugs, which ignite the fuel in the engine.
Charging System
The charging system includes the alternator, voltage regulator, and battery. The alternator produces AC voltage, which is converted to DC voltage by the voltage regulator. The voltage regulator regulates the voltage to the battery to prevent overcharging.
Dash
The dash section covers the wiring for the gauges, lights, and switches. The wiring for the gauges includes the speedometer, fuel gauge, and temperature gauge. The lights include the headlight switch, dome light, and instrument panel lights. The switches include the ignition switch, wiper switch, and headlight switch.
Gauges
The gauges are wired to the sending units on the engine. The sending units send a signal to the gauges, which then display the information on the dash. The speedometer is connected to the speed sensor, which is located on the transmission or the rear end of the car. The fuel gauge is connected to the fuel sending unit, which is located in the fuel tank. The temperature gauge is connected to the temperature sensor, which is located on the engine.
Lights
The headlight switch controls the headlights, taillights, and parking lights. The dome light is controlled by the door switches and the light switch. The instrument panel lights are controlled by the headlight switch.
Rear Lights
The rear lights section covers the wiring for the taillights, brake lights, and turn signals. The wiring for the taillights includes the license plate light, reverse light, and backup light. The wiring for the brake lights includes the brake light switch, which is located on the brake pedal. The wiring for the turn signals includes the turn signal flasher, which is located under the dash.
Taillights
The taillights are wired to the headlight switch and the brake light switch. The license plate light is wired to the taillight circuit, while the reverse light and backup light are wired to the transmission or shifter.
Brake Lights
The brake lights are wired to the brake light switch, which is located on the brake pedal. When the brake pedal is pressed, the switch closes, allowing power to flow to the brake lights.
Turn Signals
The turn signals are wired to the turn signal flasher, which is located under the dash. When the turn signal is activated, the flasher sends a signal to the turn signal lights, causing them to flash.
Conclusion
That’s it! We hope that this guide has helped you understand the 72 Nova wiring diagram. Remember, understanding the wiring diagram is crucial when troubleshooting electrical problems or when upgrading your electrical system. If you have any other questions, feel free to refer to our FAQs or contact a professional for assistance.
