95 isuzu rodeo wiring diagram and ?

The left turn signal on my rodeo is out.  It started by the indicator on the dash blinking fast and the relay clicking fast, then the indicator light went out, but the relay is still clicking fast.  So far I have tried to replace all turn signal bulbs on both sides, and the flasher relay.  I took a test light and Im getting a signal under the dash where the jack is coming from the steering column.  The fuse is also good.  I looked at the wiring by back and front bulb, but dont see a loose wire, or anything touching ground.  I followed it back until it went into a big bundle with all other wires.  Any info would be appreciated.  Also a wiring diagram would help a lot.  Thanks in advance.

Ryan

Kind of a shot in the dark, but is there a possibility that you were getting moisture inside the lenses?? I had that problem before, I was getting moisture in the lens, which in turn caused the plugs to corrode on the bulb contacts. Scraped them off good, and it solved my problem.