I'm having an issue with the rear running light on the passenger side. When i have the running lights on, it does not work, but the blinker and brake light in that position work fine. I just had to replace the bulb and since the blinker and brake light work i don't think the bulb is the issue. Any ideas?
replace the bulb
blinker/brake are one filament, and the running is another.
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well, first, get the bulb out, and look at the filamint. if it looks good, then get a volt meter, and start some testing. turn the light switch on, put the black wire from meter on the battery ground, and test different parts of the circuit(available voltage)...start at the middle, and move closer to the ground as you find things are ok(should have near source voltage through the path...not sure how the circuit is set up though...i would assume its a parallel with the other side light, so voltage should be near source voltage before the bulb if everything is ok). if middle has no voltage, move towards the power side of the c ircuit till you find voltage. once you find an unwan ted loss of voltage, then look the the wire/connection/etc. and fix it! YAY! sound good? i'm actually learning about all of this right now, so if you have any other weird symptoms, let me know, and my teacher is a wiz at this stuff.
correction...if bulb is good, put it back!...then test, lol
Dave De Stefano wrote:well, first, get the bulb out, and look at the filamint. if it looks good, then get a volt meter, and start some testing. turn the light switch on, put the black wire from meter on the battery ground, and test different parts of the circuit(available voltage)...start at the middle, and move closer to the ground as you find things are ok(should have near source voltage through the path...not sure how the circuit is set up though...i would assume its a parallel with the other side light, so voltage should be near source voltage before the bulb if everything is ok). if middle has no voltage, move towards the power side of the c ircuit till you find voltage. once you find an unwan ted loss of voltage, then look the the wire/connection/etc. and fix it! YAY! sound good? i'm actually learning about all of this right now, so if you have any other weird symptoms, let me know, and my teacher is a wiz at this stuff.
You are mostly right in the method of diagnosis, BUT, I wouldn't bother with the ground side considering that in the rear both the brake/turn lights and the running lights share the ground, so I doubt that's an issue. But I do agree with checking the power side. I doubt the fuse is the issue cause it is the same fuse for all running lights around the car.
"United by Individuality"
"If life is a joke, why aren't we laughing?"
"Normality depends on one's perception of reality."
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