Here are the best places to look:
* Your Chevy P30's Owner's Manual: This is the first place to check. While it might not contain a full wiring diagram, it may have simplified schematics for certain systems (like lighting or electrical accessories).
* Online Automotive Repair Manuals: Sites like Chilton, Haynes, and Mitchell 1 offer repair manuals (often subscription-based) that usually include comprehensive wiring diagrams. You'll need to specify the exact year and model of your P30 to find the correct manual.
* GM's Official Resources (If Possible): GM's official website might have some limited information, though accessing full wiring diagrams often requires dealership access. You may find parts diagrams that give some clues, but not a complete circuit map.
* Online Forums and Communities: Search online forums dedicated to Chevy trucks, classic cars, or motorhomes (depending on what your P30 is used for). Enthusiast communities often share information and might have scanned wiring diagrams available. Specify your year and model precisely in your search. Be aware that information from these sources may be less reliable than official manuals.
* Local Auto Parts Stores: Some auto parts stores might have access to wiring diagrams through their computer systems, though this is less common now than it once was. It's worth asking.
* Specialty Shops: If your P30 is used as a motorhome or in a specific application, try contacting a shop that specializes in that type of vehicle. They may have access to the relevant diagrams.
Important Note: Working with automotive wiring diagrams requires understanding of electrical symbols and circuits. If you're not comfortable with this, it's best to seek help from a qualified mechanic to avoid damaging your vehicle's electrical system.
