Here's why:
* Vehicle-Specific Information: Wiring diagrams and locations vary greatly between vehicle makes, models, and even years. A 2001 GM pickup could be a Chevy Silverado, GMC Sierra, or even a different model like a Canyon or Sonoma.
* Safety Concerns: Providing incorrect wiring information could lead to electrical problems, damage to your vehicle, or even safety hazards.
How to Find the Information:
1. Consult Your Owner's Manual: Your owner's manual likely has a wiring diagram section that includes information about brake controller wiring.
2. Check the Brake Controller Instructions: The installation instructions for the brake controller you plan to install should include specific wiring diagrams and locations for your vehicle.
3. Use an Online Wiring Diagram Database: Websites like AllDataDIY.com or Chilton.com offer detailed wiring diagrams and repair information for a fee.
4. Visit a Mechanic: A qualified mechanic can help you locate the correct wiring and safely install your brake controller.
Important Note: Before working on any electrical system, always disconnect the battery to avoid electrical shocks.