LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Dead OBD port!

Old Jul 25, 2005 | 10:16 PM
  #1  
danjayh's Avatar
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Dead OBD port!

My car flashed the SES light at me yesterday, so I stopped by autozone on my way home from work to get the code read. Anyhow, the tech hooked up his scanner, and it stayed blank (car was off).. He tested the scanner on his own vehicle, and it worked fine.. Since the car runs OK I'm assuming that the problem isn't the PCM .. so I think it must be wiring or the connector. Just wondering if anyone here has any insight on what the problem might be.
Old Jul 25, 2005 | 10:23 PM
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Re: Dead OBD port!

Might help if you post the year of the car. If it is a 1995, AZ won't be able to help you.
Old Jul 25, 2005 | 10:24 PM
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Re: Dead OBD port!

correct..... i have a 95 Z28 and I work at autozone. The 95's have an OBDI computer with an OBDII port in the kick board....its quite the bitch but its what GM decided to be stupid with.

Toole
Old Jul 25, 2005 | 10:47 PM
  #4  
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Re: Dead OBD port!

sorry .. it's a 96
Old Jul 26, 2005 | 12:12 AM
  #5  
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Re: Dead OBD port!

being a 96 im 100% sure it should have an OBDII computer with an OBDII port..... therefore should work.. You might have to take the kick panel off and make sure there aren't any wires that are unplugged from the back of the port..

Toole
Old Jul 26, 2005 | 12:33 AM
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Re: Dead OBD port!

Check all your fuses too. This happened to a buddy of mine.
Old Jul 26, 2005 | 07:57 AM
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Re: Dead OBD port!

Originally Posted by Crazy95Z
Check all your fuses too. This happened to a buddy of mine.
I agree. If the scanner taps power from the DLC and there is none, it won't work. The usual tell-tale sign is if your cigarette lighter does not work. It is on the same fuse as the lead in the DLC.
Old Aug 25, 2005 | 03:24 PM
  #8  
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Re: Dead OBD port!

Originally Posted by shoebox
I agree. If the scanner taps power from the DLC and there is none, it won't work. The usual tell-tale sign is if your cigarette lighter does not work. It is on the same fuse as the lead in the DLC.
That happened to me yesterday... it was the lighter fuse...
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