how do i check the code on my nissan sx200 (check engine light on on 1995 Nissan 200SX

we replaced the motor the check engine light came on when the other motor blew up and the light has never gone out

Asked by for the 1995 Nissan 200SX
Also, any shop with one of the older Snap-On MT2500 (red brick) scanner's, or equivalent, can fix you up!
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It's OBD1 so you have a couple choices, use the factory MIL check or if possible find a dealer that still have the Nissan Consult 1 reader.

Instructions here