1995 Honda Accord port for OBD

Trevor, I believe this is not a code, iso 9141 is communication protocol/ communication speed, When the scan tools make a connection to the OBD port it matches the communication speed at which your ECM communicates with the scan tool. If that is all you are seeing for a code and your engine light is on, try a different scan tool. Check the attached links,instruction and guides, Good luck
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http://www.impalassforum.com/vBulletin/34-engine-problems-maintenance/254248-check-engine-light-iso-9141-low-coolant-light-but-full.html
https://www.iso.org/obp/ui/#iso:std:iso:9141:-2:ed-1:v1:en
On board diagnostics

95 Accord is pre-obd 2 and will probably need dedicated Honda diagnostic equipment. There was no requirement at that time to use a standard connector or to place the connector within reach of the driver's seat as with obd 2.

Honda service information should provide more details or for simplicity ask your local Honda dealer to check the emission?

The simplest method would be to check the emissions the old-fashioned way - like it is still done in lots of places, by testing the emissions at the tailpipe with a suitable gasalyser...

Scan tool computer and move crank or cam sensor, some autos have no adjustments, just base timing. Computer does the rest.

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

no year car stated. so no joy.
no statement of where you saw this
on dash or from a real OBD2 scan tool)
P4 codes? no such OBD code.
some newer cars have what i call dash codes. (unique to car maker)
post back with year, and where seen?

look under the dash on left or right side of steering column for a multiprong outlet, install scan tool with key off and it will download all codes. hope this helps and thank you for choosing fixya.com

Driver side under the dash below the steering wheel, left hand side.

the obd refers to "on board diagnostics". the connector is on the left side near the fuse panel. black in color and angled on the sides.

OBD DIAGNOSTIC LINK CONNECTOR / 1995 Honda Accord 2.2L MFI 4cyl
The OBD Diagnostic Link Connector is located: Front seating area, driver side, driver side of steering column, mounted behind center of instrument panel.

Good luck, and remember rated this help.

The OBD2 system is on '96 and newer cars. There should be an OBD1 connection under the hood on the drivers side, But good luck finding an OBD1 scan tool.