How do i open com port1 on my lexus is 200 ?

Lots of diagnostic leads work on USB but are assign to Virtual coms ports via driver software

PCTech
October 2013

Normaly, the com port1 is on your PC.

Physicaly, it relate to a serial port on the back of the PC. It's a 9 pins connector. The pins are on 2 rows, one of 5 and one of 4.

Most PCs should have 2 of those. One is com port1 and the other is com port2.
If it don't work with one, try the other.

Make sure that it's not set to "Disabled"

Electro
October 2013

Is the lead assigned to com port1 on your pc?

PCTech
October 2013