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
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
under the driver side of the dash, it is a square 6 pin connecter
you have to hook up a special reader to your computer to find out the code.
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.
You will need to take it to a Ford dealership. They will hook up a computer to it and that will give the code.