Tach Output Wire???

[texfire]

i'm trying to find the tach output wire on my '99 C5. Im hooking up a nitros works system, and thats the only wire I have left to hook up. Not sure where to find it. Its for my window switch...Any help would be great..:brick:

[Matt@HSW]

Red Connector on PCM, pin 10, White Wire

[texfire]

My pcm has no number 10 wire on it. The only white wire is the number 3

[MadSeason]

Should be the white wire unless it differers from the fbody

[quicky06]

well take a volt meter and put one lead on the body and the other on the wire and have somone rev it up see what happens