| dolmer | -- 12-21-2013 @ 11:01 AM |
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I just put in a new wiring harness from the firewall to the back of my '40 and one across the back end for the taillights. Now, the taillights are very bright, but, when they are on, the brake lights come on but are too dim to see with the lenses back on. I followed the wiring diagram that came with them. What might I have done wrong? dolmer
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| kubes40 | -- 12-21-2013 @ 11:18 AM |
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I'll hazard a guess to allow that perhaps you've crossed wires back at the lamps and / or the cross over wiring. It sounds as if you have the filiments backwards. In other words, the brake lamp filiment lighting up for the tail lamps and the tail lamp filiments for the brake lights.
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| supereal | -- 12-21-2013 @ 12:51 PM |
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Mike is probably right, but you should also be sure that the lamp housing is well grounded. If not, in a two bulb set up, one lamp can seek ground thru the filiment of the other, producing a dim light. We always install a separate ground wire to all lights. If the socket isn't well connected after checking with an ohmmeter, we solder the ground directly to the socket. Time, grime, paint, and rust usually interfere with good grounds.
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| TomO | -- 12-22-2013 @ 1:19 PM |
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Make sure that the green wire of the harness goes to the green wire coming form the socket. If the color code has faded on the socket wires, turn on the parking lights and the move the black wire in the harness to each of the wires coming from the tail light. Connect the black wire from the harness to the wire where the dimmer filament is lit. Tom
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| juergen | -- 12-22-2013 @ 1:36 PM |
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Do your taillight sockets have the offset plug holes or the holes at the same distance? If they are the earlier same distance type, just reverse the lamps 180 degrees and see if that solves your problem
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