Pontiac Bonneville is a full-size automobile manufactured by General Motors from 1957 to 2005. It was introduced in 1957 as a limited production performance convertible and eventually became a full-size luxury car. The 2002 Pontiac Bonneville had an optional supercharged V6 engine, which made it a popular choice among car enthusiasts. However, like any other vehicle, it had wiring issues that needed attention to ensure seamless functionality.
Wiring Diagram Overview
The wiring diagram of a vehicle is an essential guide that helps mechanics and car owners understand the electric system of the car. A wiring diagram is a visual representation of the electrical system of a car, showing how different components are connected and where power flows. It is divided into three sections: the power source section, the body section, and the engine section.
The power source section shows how the power is generated and distributed throughout the car. The body section shows how the different electrical components of the car are connected to the body of the vehicle. The engine section shows how the electrical components of the engine are connected to the rest of the car.
The 2002 Pontiac Bonneville wiring diagram consists of 11 pages, each page showing a different aspect of the car’s electrical system. It includes wiring diagrams for many components, including the air conditioning system, the audio system, the lighting system, and the power distribution system.
Power Distribution System
The power distribution system of a car is responsible for distributing electrical power to all the electrical components of the vehicle. In the 2002 Pontiac Bonneville, the power distribution system is divided into two sections: the junction block and the fuse block.
The junction block is located under the instrument panel on the driver’s side of the car, while the fuse block is located under the hood on the passenger’s side of the car. The junction block and the fuse block are connected by a wiring harness.
The junction block contains the main electrical feeds for the car, including the battery, the ignition switch, and the generator. The fuse block contains the fuses and relays that protect the electrical components of the car from damage due to electrical surges and short circuits.
The power distribution system of the 2002 Pontiac Bonneville is shown in Table 1.
| Junction Block | Fuse Block |
| Battery | ABS 2 |
| Ignition Switch | ABS3 |
| Generator | A/C Compressor |
| Blower Motor Relay | BCM 1 |
| Headlamp Switch | BCM 2 |
Body Section
The body section of the wiring diagram of the 2002 Pontiac Bonneville shows how the different electrical components of the car are connected to the body of the vehicle. It includes the wiring diagrams for the power windows, door locks, mirrors, seats, and other electrical components.
The wiring diagrams in this section show the color-coding of the wires, the routing of the wires, and the connections between different electrical components.
Power Windows
The power windows of the 2002 Pontiac Bonneville are controlled by a switch on the driver’s side door. The switch is connected to a motor that is responsible for raising and lowering the window. The wiring diagram for the power windows of the 2002 Pontiac Bonneville is shown in Table 2.
| Wire Color | Function | Location |
| Light Blue | Left Front Window Motor | Driver Door Module |
| Dark Blue | Right Front Window Motor | Driver Door Module |
| Yellow | Power Accessory Circuit Breaker | Instrument Panel Fuse Block |
| Orange | Left Rear Window Motor | Driver Door Module |
| Black | Ground | Driver Door Module |
Door Locks
The door locks of the 2002 Pontiac Bonneville are also controlled by a switch on the driver’s side door. The switch is connected to a motor that is responsible for locking and unlocking the doors. The wiring diagram for the door locks of the 2002 Pontiac Bonneville is shown in Table 3.
| Wire Color | Function | Location |
| Light Blue | Left Front Door Lock Motor | Driver Door Module |
| Dark Blue | Right Front Door Lock Motor | Driver Door Module |
| Orange | Left Rear Door Lock Motor | Driver Door Module |
| Gray | Right Rear Door Lock Motor | Driver Door Module |
| Black | Ground | Driver Door Module |
Frequently Asked Questions (FAQ)
What is a wiring diagram?
A wiring diagram is a visual representation of the electrical system of a vehicle. It shows how different electrical components are connected and where power flows.
What is the power distribution system?
The power distribution system of a vehicle is responsible for distributing electrical power to all the electrical components of the vehicle.
What is the body section of a wiring diagram?
The body section of a wiring diagram shows how the electrical components of a vehicle are connected to the body of the vehicle.
What are the power windows of a vehicle?
The power windows of a vehicle are electrical components that allow the driver and passengers to raise and lower the windows of the car automatically.
What are the door locks of a vehicle?
The door locks of a vehicle are electrical components that allow the driver and passengers to lock and unlock the doors of the car automatically.
The 2002 Pontiac Bonneville is a classic vehicle that had an optional supercharged V6 engine. Understanding its wiring diagram is essential for ensuring seamless functionality of the electrical components. By following the guidelines and referring to the tables and FAQ provided in this article, car owners and mechanics can easily decipher the 2002 Pontiac Bonneville wiring diagram and solve any wiring issues that may arise.
