Diagnostic connector location

USA? what country?
RHD or LHD (right or left hand drive)?????
all usa cars, the 16pin DLC is less than 1meter from the steering wheel.
yours is behind the ash try(pull it)
some old honda's here, usa have dual ways to get scan codes.
the obd2 way , and obd1 way, RTM
read the FSM. or google for that.
I use ,alldata.com for fast answers, saving google searches and bad answers on forums...

fsm quote.
The 16-pin On Board Diagnostic version II (OBD-II) compliant Data Link Connector (DLC) is used to access the Diagnostic Trouble Codes (DTCs) using an OBD-II compliant Data Scan Tool (DST). It is an electrical connector with a gray housing located under the dash, either near the center console, on the passenger side of the vehicle or to the left of the driver side of the vehicle.
The two wire electrical connector with a blue housing next to the DLC is the Service Check Connector (SCS).

we (uSA have 2 DLCs. one is OBD2 and other is SCS.

id use a real scan tool. and not fool with the old winky blinky bs.
the scan tool you can check all live sensor data.
do that. and win.
1st goggle hit on SCS
http://honda-tech.com/showthread.php?t=2703528