Tools you will likely need:
* Socket set (probably 10mm and possibly others)
* Screwdrivers (Phillips and possibly flathead)
* Trim removal tools (plastic pry tools to avoid scratching)
* Wire strippers/crimpers (if replacing the switch harness, not just the switch itself)
* Electrical tape (if necessary)
* New cruise control switches
Steps (General Outline):
1. Disconnect the negative battery terminal. This is the most important step to prevent accidental short circuits.
2. Remove the steering wheel. This is often the most challenging part. You'll need to remove the airbag (if equipped) carefully, following safety procedures. The airbag deployment can cause serious injury, so refer to a repair manual for correct airbag removal and handling. Once the airbag is removed, you'll likely need to remove the steering wheel nut and pull the wheel off the steering column. Remember the position of the steering wheel before removing it to aid in reinstalling it.
3. Access the cruise control switches. Once the steering wheel is off, you should see the cruise control switch assembly. It might be held in place with screws or clips. Carefully remove them.
4. Disconnect the electrical connectors. There will be connectors attached to the back of the switches. Carefully unplug them, noting their positions for reassembly. Take pictures if you're unsure.
5. Replace the switches. Carefully remove the old switches and install the new ones, ensuring they are correctly oriented.
6. Reconnect the electrical connectors. Plug the connectors back in, ensuring they are securely connected.
7. Reinstall the steering wheel. Make sure the steering wheel is properly aligned before tightening the nut.
8. Reinstall the airbag (if applicable). This must be done according to the instructions and safety precautions outlined in your repair manual. Improper installation can be dangerous.
9. Reconnect the negative battery terminal.
10. Test the cruise control. Turn the ignition on and test the cruise control to ensure it's working correctly.
Important Considerations:
* Airbag Safety: Handling the airbag is extremely dangerous. If you are uncomfortable or unsure about how to do it safely, take your vehicle to a professional mechanic.
* Repair Manual: A repair manual specific to your 1999 Ford Ranger is essential. It will provide detailed instructions and diagrams, making the process much safer and easier.
* Switch Harness: Sometimes the problem isn't the switch itself but the wiring harness. If your switches test good, consider inspecting the wiring harness for damage before replacing the switches.
* Professional Help: If you're not comfortable working on your car's electrical system or steering wheel, it's best to take it to a qualified mechanic.
This is a general overview. Incorrect procedures can lead to injury or damage to your vehicle. Always prioritize safety and consult a repair manual before attempting this repair.
