98 K2500

[K25Sub]

I have no power to the #20 10Amp fuse. Followed all the correct procedures and replaced the ignition switch. I still have nothing. So tested the ignition switch wires and believe the new switch to be fault? Tested the yellow wire from the switch , lower right corner in the terminal block and no volts coming out of it . Is this the problem? What are the schematics for the ignition switch wiring. What wire does what?

 

[1997]

wiring diagrams here:

88-98 Service Manuals

Over the years I have collected a bunch of GM service literature. Links to PDF Scans of service and STG manuals and a links to the Parts manuals. You'll need the FREE Adobe Acrobat reader to open these files. Get it directly from Adobe here {http://get.adobe.com/reader/} If you're not...

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