jakebdb56

iTrader: (25)

I have a 2000 truck harness and PCM. I'm trying to figure out which wires to tap into for the OBDII port. since the engine harness doesn't have the actualy port wired into it, I'd rather just wire one in than finding the body control module's harness and wiring it into that. I'm sure it isn't hard, I've been trying to find a few wiring diagrams but have had no luck so far. I am this weekend going to the salvage yard to pick a OBDII port from a 99-03 truck so it'll be compatible.

thanks for the help.

jake

jakebdb56

iTrader: (25)

anyone?

slow

iTrader: (7)

you need to add a wire from pin #58 of the blue connector for the OBD2 port connection.

Ryan

wait4me

iTrader: (10)

The obd 2 connectors are all the same as long as they are from 96 up.

The Connector is numbered on the outside edge. 2 is Obd2 diagnostic from pin 58 on your pcm. 4 and 5 are ground to frame. and 16 is all time battery power.

jakebdb56

iTrader: (25)

so that's all I gotta wire?
pretty easy IMO

thanks again for the help

V8 Supra Builder

iTrader: (37)

I just replied to another topic and am doing some research on this- I have an OBD2 underdash connector from a 99+ F-body. It has the power and ground wires as you describe and the purple wire at #2. The '98 PCM has a purple wire at pin blue 58 (serial data class 2), and a tan wire at pin blue 3 (serial data UART). Could the '98 OBD2 connectors have a tan wire at #9? I haven't seen one as yet, but that #3 tan PCM wire has to go somewhere.

Doc

iTrader: (9)

Ah the 98 children of the corn...the serial UART, different signal to talk to other modules like the airbag on the earlier bus. In short, a dead end.