If you are planning to work on the turn signal wiring of a 1972 Chevy truck, it is important to have a clear understanding of how the system works. In this article, we will provide a detailed guide on the wiring diagram of a 1972 Chevy truck turn signal system. We will also provide answers to some frequently asked questions about the wiring diagram.
Overview of the Turn Signal System
The turn signal system of a 1972 Chevy truck consists of several components, including the turn signal switch, flasher, and the turn signal lamps. The turn signal switch is responsible for controlling the turn signals while the flasher provides the blinking effect. The turn signal lamps are the lights that indicate the direction of the turn.
The turn signal system works by completing a circuit between the battery and the turn signal lamps. When the turn signal switch is engaged, it sends a signal to the flasher which then sends a signal to the turn signal lamps to begin flashing.
Wiring Diagram
The wiring diagram of a 1972 Chevy truck turn signal system is divided into several sections, each representing a specific component of the system. Below is a detailed wiring diagram of the turn signal system.
| Component | Wire Color | Function |
|---|---|---|
| Turn Signal Switch | Light Blue | Left Turn |
| Dark Blue | Right Turn | |
| Flasher | Green | Blinker signal from turn signal switch |
| Purple | Power from the ignition switch | |
| Turn Signal Lamps | Brown | Ground wire |
| Yellow | Left turn signal wire | |
| Dark Green | Right turn signal wire |
Detailed Wiring Diagram
The turn signal system of a 1972 Chevy truck is divided into several sections, each representing a specific component. In this section, we will provide a more detailed wiring diagram of the turn signal system.
Turn Signal Switch
The turn signal switch is located on the steering column of the truck. The switch is responsible for sending a signal to the flasher to initiate the blinking of the turn signal lamps. The turn signal switch has four wires, including:
- Light Blue wire: Left turn signal wire
- Dark Blue wire: Right turn signal wire
- Yellow wire: Brake light wire
- Green wire: Horn wire
To wire the turn signal switch, connect the Light Blue wire to the left turn signal lamp, and the Dark Blue wire to the right turn signal lamp.
Flasher
The flasher is responsible for providing the blinking effect of the turn signal lamps. It receives a signal from the turn signal switch and sends a signal to the turn signal lamps to begin flashing. The flasher has two wires, including:
- Green wire: Blinker signal from turn signal switch
- Purple wire: Power from the ignition switch
To wire the flasher, connect the Green wire to the turn signal switch, and the Purple wire to the power source from the ignition switch.
Turn Signal Lamps
The turn signal lamps are responsible for indicating the direction of the turn. They receive a signal from the flasher to begin flashing. The turn signal lamps have three wires, including:
- Brown wire: Ground wire
- Yellow wire: Left turn signal wire
- Dark Green wire: Right turn signal wire
To wire the turn signal lamps, connect the Yellow wire to the left turn signal lamp, and the Dark Green wire to the right turn signal lamp. Make sure to connect the Brown wire to a good ground source.
FAQ
1. What is a turn signal switch?
A turn signal switch is a component of the turn signal system of a vehicle. It is located on the steering column and is responsible for controlling the turn signals of the vehicle.
2. How does a turn signal system work?
A turn signal system works by completing a circuit between the battery and the turn signal lamps. When the turn signal switch is engaged, it sends a signal to the flasher which then sends a signal to the turn signal lamps to begin flashing.
3. What is a flasher?
A flasher is a component of the turn signal system that provides the blinking effect of the turn signal lamps. It receives a signal from the turn signal switch and sends a signal to the turn signal lamps to begin flashing.
4. What are turn signal lamps?
Turn signal lamps are lights that indicate the direction of the turn. They receive a signal from the flasher to begin flashing.
5. What are the wires of the turn signal system?
The wires of the turn signal system include Light Blue wire, Dark Blue wire, Yellow wire, Green wire, Purple wire, Brown wire, and Dark Green wire.
6. How do I wire the turn signal system?
To wire the turn signal system, connect the Light Blue wire to the left turn signal lamp, the Dark Blue wire to the right turn signal lamp, the Green wire to the turn signal switch, the Yellow wire to the left turn signal lamp, the Dark Green wire to the right turn signal lamp, and the Brown wire to a good ground source.
Overall, the turn signal system of a 1972 Chevy truck is relatively simple to understand and work on. With the right tools and knowledge, anyone can successfully repair or replace the turn signal system of a 1972 Chevy truck.
