Logic and probability say it's definitely your foglight install. You've probably made a short somewhere and you're shorting out power to the ECU and it's going into full retard mode (yes, that's a technical term from the Official Nissan Service Manual). No way it's a random coincidence on an otherwise new car, just too unlikely. I'd say try removing your wiring taps (and tape over any exposed sections with electrical tape) and see if the problem goes away (assuming just the bulb doesn't fix it). I haven't done this wiring job and I can't verify exactly how yours looks either, but even if you didn't make a technicality mistake like physically shorting a wire you shouldn't, it could be that you've misunderstood which wires to attach where and now whenever you turn on the headlights (tail-lights), your properly-soldered-and-sealed circuit is just grounding out the positive side with insufficient resistance.
Last edited by wstar; 08-20-2012 at 09:57 PM.
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