Here's a general outline of the process. Specifics may vary slightly depending on your Cavalier's trim level and options. Always consult a repair manual specific to your vehicle year and model for detailed instructions and diagrams. These manuals often include exploded diagrams showing component locations and wiring harnesses.
Steps (General):
1. Disconnect the Battery: This is crucial to prevent electrical shocks and short circuits. Disconnect the negative (-) terminal first.
2. Locate the Blower Motor Resistor and Switch: This is usually located behind the glove box or under the dashboard on the passenger side. Accessing it may require removing the glove box or parts of the dashboard trim. Consult your repair manual for the precise location. The blower motor resistor is often a separate component, while the switch may be part of the climate control panel.
3. Remove the Old Switch: Once you've located the switch, you'll need to disconnect the electrical connectors and any mounting screws or clips holding it in place. Take photos before disconnecting anything to help with reassembly. Be careful not to damage the connectors.
4. Install the New Switch: Carefully install the new switch, ensuring it's properly seated and all connectors are securely attached. Refer to your photos from step 3.
5. Reconnect the Battery: Reconnect the negative (-) terminal to the battery.
6. Test the Fan: Turn on the ignition and test the AC fan on all speeds. If it doesn't work, double-check all connections.
Important Considerations:
* Repair Manual: A repair manual specific to your 1997 Chevy Cavalier is invaluable. It will provide detailed diagrams and instructions tailored to your car.
* Electrical Safety: Always disconnect the battery before working on any electrical components.
* Parts: Make sure you purchase the correct replacement switch. The part number should match the one on your old switch or be specified in your repair manual.
* Troubleshooting: If the fan still doesn't work after replacing the switch, the problem may lie elsewhere (e.g., blower motor, resistor, wiring). Further diagnosis may be necessary.
This is a simplified overview. The actual process might involve more steps, depending on your car's specific configuration. Again, consulting a repair manual is highly recommended before attempting this repair. If you're not comfortable with automotive electrical work, it's best to have a qualified mechanic perform this repair.
