Wiring Schematic for bench harness LT1

[EDZIP]

a is red. b is black. c is grey. d is blue.

ground a2, c32, a18, d1

power b15, b31, b30, d3

d30 is your serial line.



the numbers are stamped right on the connector pins. you can't screw it up.

The PCM connectors are numbered (and good to go). The OBD plug (car side) isn't numbered, my 95 LT1 manuals don't show the 16 pin connector...only the 12 pin.

So looking at the car side (female)...what are the pins numbers or assignments for the 16 pin OBD1 connector?

Thanks