code p0676
Lead Driver
Joined: Mar 2010
Posts: 5,504
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From: Woodbridge, Ontario, CA
But to diagnose that code requires simply checking glow plug #6 harness (glow plug end) resistance to ground. You should see between 0.5 to 2.0 ohms. If this checks out good, check for continuity between the GPCM and cylinder #6 glow plug circuit on the main engine harness itself. And if that checks out good, replace the GPCM.
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Senior User
Joined: May 2009
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I wouldnt have even known had I not gotten the sct. Where would be the most obvious place to start looking for the chafe to eliminate it first? Would only one code mean only one is not working properly? Can I do any damage?
Hotshot
Joined: Apr 2010
Posts: 19,055
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From: Saratoga Springs,UT
When i took mine apart for some injector work i found that the wire was starting to chaf on the harness about 1 or 2 inches before it pluged in to the GPCM right at the harness mount hope this helps
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