Anyone know where to tap for a shift light and window switch for a signal. I have them both in 4cyl mode.

 

what year?

 

I posted about the same ? in the external engine forum awhile back just search for it, got pretty much the same response from most people.
Good luck, I still can't get mine to work.

 

found it,
98 - pin 35 on the blue connector on the pcm, its a white wire,
99,00 - pin 10 on the red connector on the pcm, its a white wire,
if youre an 01 or 02 sorry I was doing this before they came out...

 

It's the white wire . . . Pin 10 of the red PCM connector on a 2001

 

I had both the shift light and the window switch working from a white wire in the dash to the left of the instrument cluster. There were 4 wires in that cluster.

The coil packs are where I want to do it this time. I have a new C6 and dont want to take anything apart now.

 

Youre gonna have to find a wiring diagram. if its for a window switch I would be tapping into the pcm, you do not want to be wrong on that one.
Rob