Quote:
Originally Posted by RON N BKFLD
MH... Yes I have a harness from CSX4000 doner car. The turn signals worked OK, then the right rear started started getting dimmer & dimmer. I checked the ground, It was good. I tried to find the problem. Now I have no turn signals at all. Tried a new flasher, no workie.
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I would suspect a bad connection somewhere in the harness that's specific to the right turn signal. An oxidized solder joint or corroded connector would present a higher and higher resistance, dimming the bulb until it no longer lit.
Turn signal flashers are usually a "balanced" component that will only work with a narrow range of load (~2 amps) on them. More, and they will flash much faster. Less, and they stop flashing - it's supposed to be a safety feature so that you know when a signal bulb is out. You can use a universal flasher that does not depend on the bulb load to maintain the flashing rate, but you're best off using the correct, balanced flasher.
Use a multimeter to check the continuity of the wire leading to the right turn signal connection. A simple way would be to turn on the right blinker (even though it's nonfunctional) and check the voltage at each point you can. You should find a connector or a segment of wire that has zero volts or close to it on the bulb side, and full 12 volts on the other. The problem lies in that stretch of the wiring harness.