the connection for the obd is in the fuse box located underneath wheel on the driver side.
The 1998 Toyota Avalon OBD 2 port is behind fuse cover
The 1997 Toyota Avalon OBD 2 port is behind fuse cover
The 1998 Toyota Avalon OBD 2 port is behind fuse cover
The 1999 Toyota Avalon OBD 2 port is behind fuse cover
The 2001 Toyota Avalon OBD 2 port is under driver side dash above brake pedal
The obd port is under the dash on the driver side.
The port for the On Board Diagnostic (OBD) computer is about 6 inches below the parking brake release on the driver's left. It is behind a panel marked OBD-DCS.
There is no OBD connector on a 1974 Honda. This vehicle is naturally aspirated and does not have an ECU and has a carburetor
Trouble code P0401 means:Exhaust gas recirculation flow insufficient detected
under the dash board where the steering wheel is located
For the '94, it is an OBD-1 system. The connector is located on top of the transmission, under the air intake hose, on the right side of the engine. There are three connectors, the one closest to the firewall, with three wires, is the OBD connector.
1993 is OBD I and the connector is in the engine compartment above the transmission on the driver's side. I suggest using a code reader rather than trying to short wires.