Electrical

Tiny
HANDYMAN
  • MEMBER
  • 1996 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 165,000 MILES
96 grand prix- No turn or tail lights. 12 volts at tail lights but no power at bulb when pluged in. Correct bulbs and all bulbs pass connuitiy test. What's up with this? Handyman
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Sunday, April 3rd, 2011 AT 7:11 PM

10 Replies

Tiny
JDL
  • EXPERT
Did you check the ground?
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Sunday, April 3rd, 2011 AT 7:27 PM
Tiny
JDL
  • EXPERT
Right tail lamp assembly, brown wire is voltage for taillamps. Black wire is ground.
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Sunday, April 3rd, 2011 AT 7:32 PM
Tiny
HANDYMAN
  • MEMBER
Yes! I checked each wire on the wire harnes. Volt meter went to zero on connuity test. The only place I have not checked is from the point of connection, to switch connection on the ground. What puzzels me is when power is turned on I have 12 volts at ground wire? This would tell me that the bulbs are shorting out. Am I right?
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Sunday, April 3rd, 2011 AT 8:39 PM
Tiny
JDL
  • EXPERT
It maybe a faulty ground, that black wire. You can test a ground, testlite connected to battery voltage, touch the terminal for the black wire. If the ground is good, the lite comes on. Ithink I posted the wrong diagram before, sorry about that. The brown wire for voltage and black for ground still applies.
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Sunday, April 3rd, 2011 AT 8:59 PM
Tiny
HANDYMAN
  • MEMBER
I just got back to this today. This is what I did. I took a black wire, ran it up under the ground connection on the wire harnes and touched it to the body of car. You wouldn't beleive it, but I have lights. Now can I leave it this way or do I need to go back to the negative side of the battery with a fuse link?
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Friday, April 8th, 2011 AT 1:44 AM
Tiny
JDL
  • EXPERT
A redundant ground should work ok.
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Friday, April 8th, 2011 AT 1:00 PM
Tiny
HANDYMAN
  • MEMBER
Thanks, for all your help. Any thing else goes wrong, it's time for TNT!
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Friday, April 8th, 2011 AT 10:49 PM
Tiny
JDL
  • EXPERT
Hopefully, it won't come to that. Lol
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Saturday, April 9th, 2011 AT 12:13 PM
Tiny
HANDYMAN
  • MEMBER
I've been driving it for a week, every thing seems to be doing great! For exception, I had to buy two tires today! Thanks guy's for all your help!
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Friday, April 15th, 2011 AT 1:27 AM
Tiny
JDL
  • EXPERT
Anytime, have a great day.
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Friday, April 15th, 2011 AT 1:43 PM

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