Is there a wiring diagram for 1992 S-10 Blazer from switch to heater fan?

Yes, there is a wiring diagram available for the 1992 S-10 Blazer that details the connections from the switch to the heater fan. You can typically find this information in a service manual for the vehicle or through online automotive repair databases. Additionally, automotive forums and websites dedicated to S-10 Blazer enthusiasts might also provide access to such diagrams.