paulguy Posted August 27, 2011 Report Share Posted August 27, 2011 That last diagram is wrong. Switch 87 and 87a around. Quote Link to comment Share on other sites More sharing options...
misterp Posted August 27, 2011 Report Share Posted August 27, 2011 I compared the colored GM diagram against the wiring schematic I use in my own efan control boxes, and paulguy is right that center relay was mislabeled in the diagram (I mislabeled the 87 and 87a pins) - I have corrected the diagram and re-posted it. It does sound like you currently have the 87 and 87a wired backwards, everything else sounds fine from your description but frankly at this point I would have to actually see what you have done with your truck to know for sure. Mr. P. PS - sorry that I could not take your call yesterday, you were calling while I was at work. Quote Link to comment Share on other sites More sharing options...
paulguy Posted August 31, 2011 Report Share Posted August 31, 2011 Get it working? Quote Link to comment Share on other sites More sharing options...
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