* Online Repair Manuals: Websites like Haynes.com and ChiltonDIY.com offer online repair manuals for many vehicles, including likely your 1978 Malibu. These manuals usually include detailed wiring diagrams. You'll likely need to pay for access.
* Factory Service Manuals: These are the most comprehensive but are usually expensive to purchase. You might find used copies on eBay or Amazon, but make sure it's specifically for a 1978 Malibu. Look for terms like "shop manual," "repair manual," or "service manual."
* Online Forums: Search dedicated Chevrolet or classic car forums. Many enthusiasts have experience with these cars and might have scanned diagrams or know where to find them. Search terms like "1978 Malibu wiring diagram backup lights" or "1978 Malibu neutral safety switch wiring" might yield results. Be aware that information found on forums is not always guaranteed to be accurate.
* Local Auto Parts Stores: Some larger auto parts stores (like AutoZone or NAPA) might have access to wiring diagrams through their computer systems, sometimes for free, although this is less likely for older cars.
Important Considerations:
* Engine Type: The wiring diagram might vary slightly depending on the engine (e.g., inline-6 vs. V8). Specify your engine type when searching.
* Transmission Type: The neutral safety switch connection will differ depending on whether you have an automatic or manual transmission. Specify your transmission type.
Remember to be cautious when working with automotive electrical systems. Disconnect the battery's negative terminal before working on any wiring to prevent shorts or accidental damage.
