My Porsche Targa has electric problem with the high low beams.
I have checked the fuses,
the voltage to the +ve terminal for the fuses w/o the fuse in place,
the continuity of the -ve terminal of the fuses to the headlight assembly female connector at the car frame,
the voltages on the female connector with the light switch on and light (high/low) level nd
the ground continuity from the 1-12 ports on the female connector at the car frame to the main ground.

The problem with the power to the low or high beam continue.

I need the wiring diagram for this car to solve the problem or if someone know a web page tha t can give me some ideas.

Thanks.