On a 1989 Ford E-150 van, the ECM (Engine Control Module) code reader receptacle is typically located under the dashboard on the driver's side. You may need to remove a cover panel to access it. Look for a rectangular connector, usually near the steering column or under the dash, that has a series of pins for connecting the code reader.
Under the hood on the passenger side firewall.
O Reilleys or Auto Zone.
The access port is underneath the steering wheel, at the very and of the plastic protection. PS: Camry does not have a code reader, a code reader has to be purchased or you can use AutoZone free service to pull error codes out of the car computer.
Under dash near steering column
The OBD 2 plug is located under the dash on the driver side.
On original key knock out and on the side of the ignition switch.
A code reader that will work on the OBD I system.
In order to use a code reader on a 1992 Dakota simply plug it into the DLC outlet. From there, the code reader should properly function.
You can't rent a code reader but you can have them use it on your car and tell you what the codes mean. You can buy an inexpensive code reader for around 50 dollars.
Input - the reader is reading the bar code and putting the information into the computer
The EEC TEST connection is in your engine compartment by the power distribution box ( OBD I / EEC IV )
Your OBD II code reader won't work on that vehicle.