I am having an issue with the switch lights in my Blazer. The only one working is the rear defogger switch. The switches on the arm rests and dash don't light. Cannot find a fuse. Bad ground, bad light switch, bad ground? Any guidance will be helpful. - - - Updated - - - Let me explain what I have done to troubleshoot this problem prior to posting. I pulled my dash apart checking the connections on the lightswich, the dimmer switch and the connector on the HVAC control. I could find no burnt contacts thus the reason I have posted this. The wiring diagram I have (Autozone) doesn't show the lighting circuit for the switches. Honestly the wiring diagram truly stinks. There are alot of systems that are not shown, if anybody knows of a better source for wiring diagrams I would appreciate knowing. I realize I am new to this site, but I do try to fix problems on my own before asking for help. Thanks.