The power switch has one green wire and one blue wire. Note that the green wire at the switch also turn yellow wire then blue wire so keep this in mind when searching.
Before you go looking for the power switch make sure all the engine-to-body grounds are adequate. Because the power switch is grounded to the engine it is critical that grounds connections are in good condition. So, if they're covered (tape, conduit) uncover and make sure they're good first.
Here are some location diagrams I found
Images (Click to enlarge)
Monday, September 9th, 2013 AT 7:34 PM