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License Plate Light Not Working...save me from a ticket!

Discussion in 'Lighting' started by lonzorizo, Aug 20, 2011.

  1. Aug 20, 2011 at 10:23 PM
    #1
    lonzorizo

    lonzorizo [OP] Well-Known Member

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    Lonnie
    Chester, Ca
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    03 DC TRD Tacoma
    Deck Plate Mod, AFE Pro Dry-S Filter, Gray Wire Mod, Wicked Flows Max Muffler, Nitrochargers & 882's w/10mm spacer, 10" 5125's & 3" standard all-pro leafs, AP Shackles, 33x12.50 mtr kevlars, projector retrofit...etc etc.
    Got pulled over the other day b/c my license plate bulbs weren't working...got a warning. So I ordered some led's from superbrightled's, popped em in today...and the license plate lights still dont work! Checked the 10a tail fuse and everythings good. What else should I check? Any other fuses?

    Seems that i've had re-occuring bulbs burning out...when I first got the truck in march a headlight went out, couple weeks later a tail light, then half the dash went out, and also a climate control knob light burnt out. And now the tail light bulbs?! Anybody have any idea whats up?
     
  2. Aug 21, 2011 at 5:56 AM
    #2
    jsutter

    jsutter Well-Known Member

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    cruise and intermittent wipers
    Is any power going to the LEDs? Stick a volt meter in there and check.
     
  3. Aug 21, 2011 at 6:35 AM
    #3
    BradleyScottETC

    BradleyScottETC Class IV Category 8 Elite VIP Member (Only)

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    Some times the circuit ampacity wont support an LED bulb, or the stock plug has opposite polarity than the LED bulb and will not power it. If you don't have a multimeter, your next step is to purchase the OEM bulbs and replace them, then go from there.

    If you do have a multimeter, test DC voltage at the plug like Jsutter said. I would also measure resistance to ground.
     
  4. Aug 21, 2011 at 8:49 AM
    #4
    lonzorizo

    lonzorizo [OP] Well-Known Member

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    Lonnie
    Chester, Ca
    Vehicle:
    03 DC TRD Tacoma
    Deck Plate Mod, AFE Pro Dry-S Filter, Gray Wire Mod, Wicked Flows Max Muffler, Nitrochargers & 882's w/10mm spacer, 10" 5125's & 3" standard all-pro leafs, AP Shackles, 33x12.50 mtr kevlars, projector retrofit...etc etc.
    Ill try and have someone get me a multimeter today...there's nowhere to buy one in town lol. What does measuring resistance to ground do?
     
  5. Aug 21, 2011 at 6:17 PM
    #5
    BradleyScottETC

    BradleyScottETC Class IV Category 8 Elite VIP Member (Only)

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    Measuring resistance to ground tells you wether or not your circuit is shorted to ground. For example, if you have a worn or bare +12v wire that is touching the frame, you'll measure 0hms to ground, demonstrating a short.

    You can get a cheap, basic multi-meter supporting all the features you need to work on a 12v DC circuit at Autozone or Advanced Auto Parts.
     
  6. Aug 21, 2011 at 9:05 PM
    #6
    lonzorizo

    lonzorizo [OP] Well-Known Member

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    Lonnie
    Chester, Ca
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    03 DC TRD Tacoma
    Deck Plate Mod, AFE Pro Dry-S Filter, Gray Wire Mod, Wicked Flows Max Muffler, Nitrochargers & 882's w/10mm spacer, 10" 5125's & 3" standard all-pro leafs, AP Shackles, 33x12.50 mtr kevlars, projector retrofit...etc etc.
    So I borrowed a multimeter...got power. Then put the bulb back in and checked once more...and the light came on? So I pulled the other bulb out and started bending the metal pins a bit and put the bulb back in and after some wiggling it came on. Sweet! lol thanks everybody.
     
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