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post #1 of 6 Old 01-21-2008, 11:46 AM Thread Starter
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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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post #2 of 6 Old 01-21-2008, 11:48 AM
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P0670 Glow plug Control Circuit Error
P0683 Glow Plug Control Module to PCM Communication Circuit

RICK


97 F350 CREW CAB 4x4, 7.3 TURBO DIESEL, DIY INTAKE , TW TUNES
GRAND ROCK POWERFLOW STACK KIT W/5" MITRES
3.55 REARS, 3" DOWNPIPE, FPR SHIMMED WITH GAUGE

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post #3 of 6 Old 01-21-2008, 11:50 AM
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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.

2001 F250
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post #4 of 6 Old 01-21-2008, 11:52 AM
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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...

2001 F250
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post #5 of 6 Old 01-21-2008, 11:58 AM Thread Starter
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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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post #6 of 6 Old 06-05-2008, 05:28 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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