1. Power Cables:
a) Battery Cables: These are heavy-duty cables used to connect the battery to the starter motor and other electrical components requiring high current.
b) Main Wiring Harness Cables: These are thick, multi-core cables that distribute electrical power from the battery to various electrical systems like headlamps, power windows, and audio systems.
2. Ground Cables:
These are used to provide a path for electrical current to return to the battery's negative terminal. They are typically connected to the chassis or engine block.
3. Signal Cables:
These cables carry low-level electrical signals between various sensors, switches, and control units. They may include:
a) CAN (Controller Area Network) Cables: Used for communication between electronic control units (ECUs) in modern vehicles.
b) Data Link Cables: Used for diagnostic and programming purposes, allowing communication between the vehicle's ECU and external devices like scan tools.
4. Coaxial Cables:
These cables are designed to transmit high-frequency signals with low interference. They are commonly used for radio antennas and video signals in entertainment systems.
5. Speaker Cables:
These are used to connect audio amplifiers to speakers. They carry audio signals and typically come in various gauges depending on the power handling requirements.
6. Lighting Cables:
These cables provide power to various lighting components, including headlamps, taillights, and turn signals. They may also incorporate wiring for ground and signal functions.
7. Sensor Cables:
These cables connect various sensors, such as oxygen sensors, temperature sensors, and speed sensors, to the vehicle's ECU for data transmission.
8. Shielded Cables:
Used in sensitive applications to minimize electromagnetic interference (EMI) and ensure reliable signal transmission. They may be employed for audio systems, data communication, or electronic control systems.
9. High-Voltage Cables:
Found in hybrid and electric vehicles, these cables carry high-voltage electrical current from the battery to the electric motor or other high-voltage components. They require special insulation and construction to handle the voltage levels involved.
These cables are color-coded and labeled to facilitate easy identification and proper installation during harness assembly and vehicle repair.
