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  #1  
Old 01-21-2008, 12:46 PM
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DTC's

Just wondering if anybody knows what these DTC's mean

PO683 and PO670

Thanks

Greg
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Old 01-21-2008, 12:48 PM
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P0670 Glow plug Control Circuit Error
P0683 Glow Plug Control Module to PCM Communication Circuit
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Old 01-21-2008, 12:50 PM
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P0683 is a failure in the diagnostic circuit for the GPCM.
P0670 is a fault in the control line for the GPCM.
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Old 01-21-2008, 12:52 PM
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For 0670 - bad electrical plug or wire to the GPCM
There was a TSB about electronic glow plug controle module harness repair kit.

If 0683 continues after this ^ it's probably a bad GPCM and they can be bought @ napa...
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Old 01-21-2008, 12:58 PM
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Thank your for the reply. Would you possibly know what that control moduale looks like. I think I know but not positive.
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Old 06-05-2008, 06:28 AM
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Greg m,

did you ever get this problem resolved b/c I am getting the same codes.I just replaced the glow plug relay and am still getting the 0683. i also have a 1000


Rodio
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