Somewhere in the engine compartment ( battery side ) you will find an EEC TEST connection for your OBD I / EEC - IV system
take the truck to your local ford dealer. they can hook up their scan tool and read the code.
Where to hook code reader 2002 envoy
The obd2 plug is under the knee board (under the column).
Your OBD II code reader won't work on that vehicle.
you can find it on the inside of the passenger side fender by the battery under a usually black cover labeled as such
To hook up a code reader to a 2000 Volvo, locate the OBD-II diagnostic port, which is typically found under the dashboard near the driver's side, just above the brake pedal. Plug the code reader's connector into this port. Once connected, turn on the vehicle's ignition (without starting the engine) to power the code reader, allowing it to communicate with the car's onboard computer. Follow the reader's instructions to retrieve any diagnostic trouble codes.
If you are sitting in the steering wheel the hook up will be located by your right knee under the dash.
were did the tow truck hook the cables at ????????
passenger side panel, above left knee
you have to hook up a special reader to your computer to find out the code.
under the driver side of the dash, it is a square 6 pin connecter
you get a code reader and hook it up to the fuse boc and it will say erase codes and u mass the green button.