Need Help: Park Neutral Sw Wire, Black Color

[sintox]

Hi all,

If you have experience dealing with Park/Neutral Position wire, please help me to find the correct wire color.

http://i38.tinypic.com/2r7llyr.jpg

The main harness (behind the passenger(right)-side front strut-tower) is shown in the picture.

According to Camry 94 4cyl Wiring diagram, there should be a Black Wire (or Black with White Stripe) that goes from the Park/Neutral Position Switch PNP SW (it's on the left of the battery) to the computer inside the cabin. So I think it must pass by this main-harness.

I found THREE black wires (with silver dots) inside the main-harness as picture: the one on the left goes to the Diag. Connector, so it's the Tacho.. By logic: one of the 2 remaining black wires must be the PNP SW.

So I cut a little bit of plastic covering those wires and check with a multimeter to the ground-battery. I turn the key to Ignition, Transmission to Park-Reverse-Neutral-Drive.

Nothing ! The Multimeter shows Open-Loop no matter which shift-position. So these wires ARE NOT the correct colored PNP SW wires. So I taped them back with black-tape (top of figure).

Then I try the White-(Black stripe) wire and the multimeter shows it's a ground (Close-loop at any shift-position and even when key is out of keyhole). So I again taped the cut with black tape.

I wonder if the PNP SW is inside the larger SHIELDED grayish wire you see on the picture among all the color wires.

Is it possible that the PNP SW wire pass the firewall at another place ?

THANK YOU SO MUCH EVERYONE.