2000 Jeep Laredo

Electrical problem
2000 Jeep Laredo 6 cyl Two Wheel Drive Automatic 149000 miles

My right turn signals front and back work fine. My left turn signals do not work at all. I replaced the bulbs and that is not the problem. I checked the fuses adn there is not one that separated right from left so that is not the problem. I am thinking it is the signal flasher but don't know how to locate it and check it for functionality. How do I go about checking it and how do I find it?
September 14, 2010.

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