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iTrader: (9)

I had read that its wired differently than LS1 ports so if anyone has info/help here that would be mint

flyboy2

Here is how I wired mine:

Pins 1,2,&3: Not Used
Pin 4: (BLACK) Ground, Circuit 1050
Pin 5: (BLACK/WHITE) Ground, Circuit 1851
Pin 6: (TAN/BLACK) GM High Speed LAN Serial Data Bus +, Circuit 2500
Pins 7 thru 13: Not Used
Pin 14: (TAN) GM High Speed LAN Serial Data Bus -, Circuit 2501
Pin 15: Not Used
Pin 16: (RED/WHITE) Battery Positive Voltage, Circuit 640

I hope this helps

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iTrader: (9)

Mint thanks!

What pin did you use for tach signal? Its not very clear on my schem which one that is...

flyboy2

I am using an Revolution gauges tach, so all I had to do was tap into one of the coil leads., but I have heard that pin 48 module X1 (J1) is the tach signal.

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iTrader: (9)

Thanks again I'll give that a try

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iTrader: (9)

Strangely enough pin 48 is empty on my harness. I have no issue adding one in at all but now Im baffled as to how the Escalade tach worked? It must have grabbed signal from somewhere else? Im still going to try it unless someone comes up with some other info that makes more sense. Damn im getting closer by the minute here.... its only been a year and a freakin half got carried away on it though... Pretty much a new car now