I'm missing the OBD-2 Diagnostic plug (located under the dash near the hood latch area) that the smog station plugs in to smog the vehicle. I was wondering where the OBD-2 diagnostic plug connects on the underdash harness. Does it plug in along with the SRS wiring? If anyone could show me a picture of their obd-2 diagnostic plug and where it leads into underneath the dash that would be awesome. For some reason, I am missing that piece and was wondering if it was connected to my SRS wiring which I removed. Any help would be appreciated. Thanks in advance.

BTW my car is 99-00 Civic.

 

Did you cut any wiring? It would seem you had to have since there is a direct connection from the ECU to the DLC plug.

 

No, I have not cut any wires from what I remember.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EM1b18cR &raquo;</TD></TR><TR><TD CLASS="quote">No, I have not cut any wires from what I remember. </TD></TR></TABLE>

Doesn't really matter - you've got the schematic. Find ECU pin A21 and trace the wire to wherever it ends as it should end directly at the connector.

 

anybody?

 

There is a direct connection FROM the ECU to the DLC. Now, if you don't see the DLC hanging around, then more than likely....

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EM1b18cR &raquo;</TD></TR><TR><TD CLASS="quote">No, I have not cut any wires from what I remember. </TD></TR></TABLE>

....this was incorrect.

Now, is there presently a wire in A21?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EE_Chris &raquo;</TD></TR><TR><TD CLASS="quote">There is a direct connection FROM the ECU to the DLC. Now, if you don't see the DLC hanging around, then more than likely....

....this was incorrect.

Now, is there presently a wire in A21?</TD></TR></TABLE>

I did not cut any wire, but I did take out all the SRS related things such as the SRS computer and I took out the heater core. I'm assuming maybe it was attached to one of those. Those wires were just clips and I didn't have to cut anything. I'll go check if I could see the A21 wire. In the mean time, do you have any actual picture where I could look at other than a diagram? Let me know.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EE_Chris &raquo;</TD></TR><TR><TD CLASS="quote">

Did you cut any wiring? It would seem you had to have since there is a direct connection from the ECU to the DLC plug.</TD></TR></TABLE>


that diagram is useless you fat cow

 

A schematic of how things are hooked up is useless?

Do you actually know how to troubleshoot a problem?