* Factory Service Manual: This is the best source. A factory service manual (FSM) will have detailed wiring diagrams, often broken down by system (electrical, fuel injection, etc.). You can often find used FSMs on eBay, Amazon, or through online forums dedicated to Corvettes.
* Online Forums: Corvette-specific online forums (like CorvetteForum.com) are excellent resources. Members often share diagrams or point to where they've found them. Searching the forums for "1991 Corvette wiring diagram" or a more specific term related to your issue will likely yield results.
* Repair Manuals (Chilton, Haynes): While generally less detailed than a factory service manual, Chilton and Haynes repair manuals sometimes include simplified wiring diagrams. They're more readily available than FSMs but may not offer the level of detail you need.
* Third-Party Websites: Some websites specialize in automotive repair information, potentially offering wiring diagrams for a fee. Be cautious about the legitimacy and accuracy of these sites.
Important Considerations:
* Specificity: The more specific you are with your search, the better your results. Instead of just "wiring diagram," try "1991 Corvette headlight wiring diagram" if you're having a headlight problem.
* Diagram Type: Wiring diagrams can be presented in different ways (schematic, pictorial). Understand which type will be most helpful for your needs.
* Year Variation: Be absolutely sure you have the correct year (1991). Minor variations in wiring can exist even within the same model year due to options and trim levels.
Remember to always disconnect the negative battery terminal before working with any electrical system in your vehicle. If you're not comfortable working with car wiring, it's best to consult a qualified mechanic.
