Can I first ask why you need to locate this. It is just a box and there is basically nothing you can do with it. In fact the car may have several given its age so which one do you want to find.
There may be an engine control computer, a transmission control, a body control, well you get the idea.
It would be better if you were clearer about what fault you have and then ask people for help as it may have nothing to do with any of the computers on the car. often a sensor failure is the problem.
Answers & Comments
Can I first ask why you need to locate this. It is just a box and there is basically nothing you can do with it. In fact the car may have several given its age so which one do you want to find.
There may be an engine control computer, a transmission control, a body control, well you get the idea.
It would be better if you were clearer about what fault you have and then ask people for help as it may have nothing to do with any of the computers on the car. often a sensor failure is the problem.