The ALDL for GM OBD1 is different than the typical ALDL yet it is not OBD2. If possible, I would like a PDF of the pin-out diagram for the OBD1 port on my make and model of vehicle. I was also wondering if I could use the paperclip trick on my make and model to check codes. If so, exactly how would I go about doing that? And, how would I read/verify such codes? I have attached two photos: photo (1) is the '95 Buick Century (different OBD1) & photo (2) is a '91 Chevrolet Cavalier (typical OBD1).
Images (Click to enlarge)
Oct 14, 2013 at 5:10 PM
