Anyone know where i can locate the tach signal wire on an 06 LE5?

i bought a shift light and it gives an example of an 05 l61 and a 09 LNF. im guessing its much like the LNF as they are both VVT and the timing systems would be closer to the same.

2005: tach signal is at cylinder #1 ignition coil, brown wire with white stripe (ignition coil driver #1 from PCM)



2009 Cobalt SS 2.0L Turbo (LNF Engine): Engine RPM can be found at any of the 4 ignition coils or at engine control module (ECM). There are 2 connectors on the ECM, "X1" and "X2". "X1" is a 96 pin connector. "X2" is a 58 pin connector. ECM is located at front of vehicle's engine compartment, driver's side.

X1 is where the coil control signals come from. Pin 55 (coil control #1, purple wire), Pin 79 (coil control #3, light blue wire), Pin 56 (coil control #4, dark green with white stripe wire), Pin 80 (coil control #2, orange wire). Tie the green wire of the shift light to only one of these wires either at the ECM or at the coil. Set shift light to 1/2 pulse/rev or "1 cyl mode).

If using dual mode shift light, connect white wire of shift light to ECM connector "X2", pin #53, yellow wire.