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Code 43 & ESC Problem (96 Z71)
Anyone have any info on how to get rid of a code 43? The book says that the power to the ECM is low, and also the ESC (electronic spark controller) might be at fault. Where is the ESC located on a 96 Z71? Also, what inputs feed the ESC? A wiring diagram would be awesome. One more thing, what is the PCY box (small white box by the computer) any help would be great.
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