Depends what you mean. The 94 wasn't OBD II, so it doesn't use a scanner in quite the same way. The 94 still used the DRB II I believe, though the DRB III can be used for some diagnostic work as well with the right add-on parts. The car does still use trouble codes of some variety though, and you can read them from the dash with just a key, no scanner needed. There is some procedure of cycling the key that will then blink the check engine light based on the number code of the fault.