* Owner's Manual: The most reliable source is your van's original owner's manual. It should have a section dedicated to fuses and relays, with a diagram showing their locations and what they control.
* Repair Manual: A Haynes or Chilton repair manual specific to a 1995 Chevy G20 will contain detailed fuse box diagrams, often with multiple diagrams for different fuse boxes (if your van has more than one).
* Online Automotive Repair Databases: Websites like AlldataDIY (subscription required), Mitchell1 (subscription required), or others offering online repair information may have the diagram. Search using the year, make, and model of your van. These usually require a paid subscription.
* Chevrolet's Website (unlikely): While less likely, you might find a diagram on the official Chevrolet website, although this is not common for older models.
* Third-Party Automotive Websites: Some websites dedicated to automotive repair offer free diagrams, but always double-check the accuracy and source. Be cautious as the information's reliability varies greatly.
* Forums: Online forums dedicated to Chevy vans or G-series vans may have members who have shared diagrams or can point you to a good resource.
Important Note: The 1995 Chevy G20 might have multiple fuse boxes (one under the hood and one inside the passenger compartment). The diagram you find should clearly indicate which box it depicts. Always double-check the diagram against your van's actual fuse box to be sure it matches.