Question about 2000 Pontiac Grand Prix

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2000 grand prix day time running lights/blower not working correctly

2000 grand prix once in a while the daytime running lights will not come on, when the blower switch is on(any speed) when I turn the blower off, the lights will come on. You can hear a relay click when you cycle the fan switch on/off and the DRL come on/off. The headlights will come on manually and work normally. Some times while it's dark only the parking lights come on and no DRL'S while this condition exsist the rear defroster will not work either. This problem does not happen all the time sometimes it will work correctly, other times it may be working fine, turn the car off an re-start it and you have the problem again. Sometimes it will work fine for a week, you just never know.

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  • fhughes May 23, 2009

    i have the same problem exactly. Also the driver info center goes off
    when the blower doesn't work. the highest blower speed will work
    intermittently. like this problem. the headlights come on when blower
    switch is off and they will come on when the blower is on the highest
    speed. any other blower speed setting the headlights go out and no
    blower.

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Believe it or not, but it was a bad ignition switch. I the switch apart and found about 3 different and one in particular that were burned pretty bad. Must have been the circuit that controls the blower and DRL? Found the solution on another blog. I put a new switch on in about 1.5 hours. I does take a couple special tools, very small female torx sockets. Other than that pretty easy.

Posted on May 25, 2009

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Posted on Jan 02, 2017

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