1. Engine and Ignition:
- Battery: The main battery of the vehicle is located in the engine compartment, typically on the driver's side. It provides power to various electrical components and systems.
- Starter Motor: The starter motor is responsible for cranking the engine. It is connected to the battery and ignition switch.
- Ignition Switch: The ignition switch is typically located on the dashboard or steering column. It allows you to turn the electrical systems and start the engine.
- Distributor: The distributor (if applicable) is responsible for distributing high voltage to the spark plugs in the correct firing order.
- Spark Plugs: Spark plugs ignite the fuel-air mixture in the engine's cylinders. Each cylinder has a spark plug connected to it.
- Fuel Injection System: The fuel injection system is responsible for delivering fuel to the engine. It includes injectors, fuel lines, and a fuel pump.
- Oxygen Sensors: Oxygen sensors monitor the amount of oxygen in the exhaust gas and provide feedback to the engine control unit (ECU) to adjust the air-fuel mixture.
2. Lighting and Signals:
- Headlights: The headlights are located at the front of the vehicle and provide illumination while driving at night.
- Taillights: The taillights are located at the rear of the vehicle and help other drivers see your vehicle at night.
- Brake Lights: The brake lights are integrated with the taillights and illuminate brightly when you press the brake pedal.
- Turn Signals: The turn signals are located on both the front and rear of the vehicle and are used to indicate when you intend to turn.
3. Gauges and Instruments:
- Speedometer: The speedometer measures and displays the vehicle's speed.
- Tachometer: The tachometer measures and displays the engine's revolutions per minute (RPM).
- Fuel Gauge: The fuel gauge measures the amount of fuel remaining in the fuel tank.
- Temperature Gauge: The temperature gauge measures and displays the engine coolant temperature.
4. Audio System:
- Head Unit: The head unit is the main control center for the audio system. It typically includes a radio, cassette player, CD player, or other sources of music.
- Speakers: The speakers are located throughout the vehicle and provide audio output from the head unit.
5. Convenience Features:
- Power Windows: The power windows allow you to raise or lower the windows using electric switches located on the driver's door and sometimes on other doors as well.
- Power Locks: The power locks allow you to lock or unlock the vehicle's doors using electric switches located on the driver's door and sometimes on the key fob.
- Cruise Control: Cruise control allows you to maintain a set speed without continuously pressing the accelerator pedal.
6. Fuses and Relays:
- Fuse Box: The fuse box is typically located under the dashboard or in the engine compartment. It contains fuses that protect electrical circuits from damage due to excessive current.
- Relays: Relays are used to control high-current loads, such as the starter motor and fuel pump, by using a small amount of current.
It's important to note that the actual wiring configuration may vary based on the specific model and trim level of the 1988 Mazda RX-7, and modifications may have been made to the vehicle over time. If you have any specific questions or concerns about the wiring of your vehicle, it's best to consult a qualified automotive electrician or refer to the vehicle's service manual for detailed information.
