Bill;
The switch wires into the 6 or 7 prong connector that the original switch used. I cut the connector off the old switch wires and wired it onto the end of the new switch wires. I just had to match the the colors from the truck wiring diagram with the switch wiring diagram. The power going into the switch doesn't go through the connecter. It is a separate wire that goes into the flasher and then out to the switch.
So how about I disconnect the 6-way connector and also take the flasher out of the loop. I'll hook the power wire together with the power line going into the switch. According the my diagram it will be the red wire coming from the power hooked to the black wire going into the switch. That way I can move the switch lever back and forth and check for power at each of the 4 outbound wires going to the 4 lights. After that, I'll wire the flasher back in to see if that makes any difference.
If my current theory holds true, I should NOT get power to the left front blinker light (yellow wire) with the switch in the left signal position, but still get power to the left rear (orange wire). There should be power to both the right side lights in the right blink position. Finally, I should get power at all four conrners in the 4-way position. If those results don't play out, it should lead me in a good direction to identify the problem.
If all that does hold true, then what?? At that point I guess the only option left is to really take it out and take it apart. I'll have to go connection by connection inside the switch. The only way to do that will be to completely dissassemble the switch and check wire by wire on the bench.
Anyway I'm rambling but it is helping my think this through. I'll go back out to the garage tomorrow after work. I'll post again once I have test results.
Thanks to everyone for your patience and help.
