Manual Cargo Light?

RedneckWithPaychecks said:

My 89 has odd wiring, I think it’s because someone did a dash/interior swap and left some stuff from the original interior in place. That reflects when I have to have the Climate Control set to recirculate for the cargo light to work. And the needle has to be on E for it to be full, and F to be empty.

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Austin Brown said:

So as someone previously mentioned, the cargo lamp ties into the dome light ground. The ground for the cargo light on the plug is white (there's 2 white wires, the second one is the power for the 3rd brake light). You just need to take the ground wire from position A in the plug and ground it into the black wire. And don't worry, the back of the plug is marked A-D. After you do that, cap the other end of the ground wire so it doesn't ground out and leave your dome lights on

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Tan1998K2500 said:

It is interesting, especially being right next to a white power cable as well. But, i just recently did it and it works like a charm. It bypasses every "safety" feature gm did with the cargo light. It even works while in gear and driving too

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Demon Mudder said:

Oh that'll be nice! Well I got my auxiliary lights hooked up, so that and an egr code I've got, are all I've got left to deal with. So one of these days, better if I do it from the third brake light itself, or is there a better point to give it it's own ground?

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Tan1998K2500 said:

Just for easability, I'd personally recommend just grounding at the 3rd brake light. Because i also did it for the cargo lights on my mirrors as i plan to put high output lights in the mirrors instead and also use them as aux backup lights

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packer0440 said:

You just take the ground coming from the light and give it its own ground. From the factory it is tied into the dome light ground

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