Check the fuse for the cigar lighter. It supplies power to the OBD connector. It's under the Hood in the electrical centre .. a black fuse box above the driver side wheel
2004 didn't have obd II
The 2004 Subaru Legacy OBD 2 port is under dash at left, next to kick panel"
It is under the dash on the driver side.
The 2004 Chevrolet Venture OBD 2 port is on lower edge of dash; left of or under steering column
at the driver side underneath the steering wheel.
The diagnostic connector is under the dash on the driver side.
The 2004 Ford Escape OBD 2 port is on lower edge of dash, right of hood release
The OBD connector is under the dash on the driver side.
The OBD connector is under the dash on the driver side
Your EEC test port is in the engine compartment by your power distribution box EEC IV / OBD I system
In my 2004 Chevy Aveo LS, the OBD-II connector is against the panel closest to the driver's knees above the brake pedal.
1988 is OBD 1 not 2. The connector is under the hood, next to the battery.1988 is OBD 1 not 2. The connector is under the hood, next to the battery.