Join Date: Apr 2009
Location: Hebron, Indiana
Re: Truck wont start 2005 GMC Canyon
The first place I would look is fuse 43 (30 amp) then relay 62 and relay 61. After that it would be the neutral safety switch.
You probably should go download the "Starting Automatic Trans.pdf schematic and take some voltage readings there to see which way to go. (I am new to this forum and could not figure out how to add the file to this posting.)
As a example from the schematic, if there is +12 coming out of Relay 82 then everything upstream is OK and you have a bad starter solenoid.
It is kind of hard to help diagnose this further without some voltage readings from the various components.
2005 White 2wd Z71 WT