Wiring question
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TECH Junkie
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From: Dover, Arkansas
Wiring question I am modifying a harness from an 04 avalanche for my next swap. I have two different wires to chose from for the Data Link Connector. They are listed below. Which one do I need to use?
C1-58 PCM Class 2 Serial Data dark green
C1-59 Class 2 Serial Data yellow
C1-58 PCM Class 2 Serial Data dark green
C1-59 Class 2 Serial Data yellow
Last edited by LS1MCSS; Mar 10, 2014 at 02:36 PM.
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From: 217
Joined: Sep 2004
Posts: 3,148
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From: Downers Grove, IL
Yep 58 dark green is what GM uses to go to the DLC. The yellow wire on pin 59 goes to the BCM. It would probably work, but I prefer to follow GM`s lead as much as possible.
