Question about 2004 Chevrolet Suburban

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Day light running lights not working. Fuse still good and so is the bulbs. Wondering what else to ck.

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Now for the fun part; you'll need to locate the relay that powers the lights. If you have the owners manual I'd start there. If not, the I'd call the dealer to find out where the relay panel is and which relay in the panel. It is possible the relay panel is under the hood, passenger side. It will be a black plastic rectangular box, usually mounted toward the top of the engine compartment. It should say either ' relay ' or ' fuse / relay ' on the lid. Push in the plastic release tabs on either side of the lid, pull up gently, and look on the inside of the lid - there may be a "map" printed or stickered there that will show you what is what. Now try tapping on the corresponding relay as your helper turns on the switch. If that doesn't work, then look for a set of numbers on the affected relay and see if any of the other relays have the same number - if so, then switch relays to see if that works. Also look at the pins or spades on that relay - if any are dirty or corroded, try cleaning them and test out the relay.
Hope this helps!

Posted on Nov 05, 2010

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Do the headlights turn on when it gets dark still? if not i would check the sensor on the top of dash.

Posted on Nov 05, 2010

  • George Hels
    George Hels Nov 05, 2010

    The sensor on top of the dash is for auto headlights. The daytime lights are a different circuit.

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