I have a 1999 Chevy Malibu I recently replaced the wiring harness on that car headlights work tailights wnt come on at night unless I step on the brake then the left side comes on but the right wnt
I'd recheck the connections and ground of the new harness. Make sure there have not been midyear production changes to the harness. If there have been, do you have the correct one, and what was changed if so. follow the wiring and see if your grounds are making correct contact. Make sure there is no cross connection or damaged wires shorting across to another loop. It is in the wiring I'm nearly certain.
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