SOURCE: Chevrolet Blazer 2000 Wiring Diagram
Have a look here.
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528022b04d
SOURCE: how do I find a PCM wiring diagram?
We do not have any wiring diagrams available for download due to copyright laws.
howdie sounds like you got a ground problem to the pcm so l wood put aground from the pcm to the body for extra and see how that goes
SOURCE: PCM WIRING DIAGRAM 2007 AVALANCHE W/5.3 V 8
Dealership, repair shop or alldata.com.
Testimonial: "THANKS VERY HELPFUL MY WIFE'S TRUCK REAL,Y BEEN ON MY YOU KNOW WHAT TO GET IT FIXED THANKS AGAIN TERRY D."
SOURCE: I need a 1998 chevy blazer pcm wiring diagram for free help
here is a link may help you with your wiring for your vehicle , this is for all GM , 4.3, 5.0 and 5.7 L engines , good luck
http://troubleshootmyvehicle.com/gm/4.3L-5.0L-5.7L/pcm-connector-pin-outs-1998-1999-page-1
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