* Repair Manuals: A Haynes or Chilton repair manual specific to your Grand Am's year and model will be your best bet. These manuals usually contain detailed wiring diagrams. You can find them at auto parts stores, online retailers (like Amazon), or sometimes at libraries.
* Online Forums: Search Pontiac-specific forums (like the ones on sites dedicated to classic cars or specific Pontiac enthusiast communities). Members may have scanned copies of diagrams or know where to find them. Be sure to specify the exact year and model of your Grand Am in your search.
* Online Parts Stores: Some online auto parts retailers (like AutoZone, Advance Auto Parts, etc.) may offer access to wiring diagrams if you input your vehicle's information. This access may be free or require a paid subscription.
* Dealership (Last Resort): As a last resort, you could contact a Pontiac dealership (if one is still around in your area) or a GM dealership. They *might* be able to provide you with a diagram, but it's likely to be expensive.
Important Considerations:
* Year and Model: The wiring harness is different for each year and even trim level of the Grand Am. Knowing your car's precise year and model is absolutely crucial.
* Diagram Specificity: Wiring diagrams are incredibly detailed. Make sure you're looking at the correct section for the specific component or system you need to work on.
Good luck with your search! Remember to be patient and thorough in your search, as finding the right diagram may take some time and effort.
