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Headlight Wiring Schematics with question...long.. (archive)

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Posted by Erik Brannfors - Seattle on August 29, 2001 at 12:38:54:

OK, I cannot figure this out! The fuses are fine. The relays are fine. The bulbs are fine. The low beams work on low, the high beams work on high, but the low beams turn off when the high beams are activated. Here are some shots of the ETM page with explanations:

Here is the entire page:

Here is the detail area of the left and right wiring routes:

Here are the left and right schematics with the low beam connector in the box that I am having a fit with:

So, let's look at the drivers (left) side. When the low beams are on, the Yellow/White wire at connection B is energized. It grounds through the brown ground wire at connection A. The headlight pigtail has 2 color coded wires coming off it that plug into these corresponding connectors. This leaves White/Violet wire with no corresponding connection to the low beam bulb, which is not hot anyway when the low beams are on.

However, when you hit the high beams, the Yellow/White wire de-energizes and the White/Violet energizes, both for the high beam light and in the connector for the low beam light. However, since the Yellow/White wire has no power to it and the White/Violet wire does not connect to the low beam bulb, the low beam lights go off and the high beam lights come on. This means that there has to be some way when the high beams are on to get the power from the White/Violet wire in the low beam connector to the bulb itself!

I have tried moving the light bulb pigtail wires from the Yellow/White position to the White/Violet position and what I end up with is no low beams on low, and all 4 headlights on when switched to high - THAT MAKES SENSE! When I try crossing the Yellow/White and White/Violet wires with a piece of scrap wire, I blow the fuses. DUH!

This is why I need a picture of a WORKING CONNECTOR!!!!!

Thanks for reading.....

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