Im trying to wire up my window switch right now on my 01 z06. I need to kno where the tach signal is located???

 

It's the PCM under the the batt area, and accessible through the wheel well. It's #10 and a white wire, IIRC. You can see the numbers if ya look close, and only one #10 with a white wire. I'll double check my notes to be sure, or someone will step in to verify. Hope this helps.
Robert

 

Works, Thank You!

 

your welcome, and man that was a fast install.
Robert