Thread: Troubleshooting obd port not working anymore

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  1. #1 Troubleshooting obd port not working anymore 
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    hey guys im curious if anyone has ever had this problem happen not just to a grand prix but any car for that matter. Before i was able to read the codes in my gtp with my code reader and now all of a sudden it dosent come on at all? I checked my grand am and it works on that just fine so im stumped as to what is causing this? Any advice on what i could do or check for would be great as i dont know much about wiring on cars. Thanks!
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  2. #2 Re: Troubleshooting obd port not working anymore 
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    Do you get any power off of the port? If not definitely check the fuse for the cigarette lighter. They are on the same circuit.
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  3. #3 Re: Troubleshooting obd port not working anymore 
    Killa Bee Scottydoggs's Avatar
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    blown fuse for sure.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #4 Re: Troubleshooting obd port not working anymore 
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    Oh okay thanks guys appreciate it! I wonder why its on the same circuit as the cig lighter thts kinda random lol
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  5. #5 Re: Troubleshooting obd port not working anymore 
    SE Level Member 1969n2o's Avatar
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    Most car manufacturures put the dlc fuse on the same circuit as the cigg lighter. Ive seen some that have their own but not common.

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