OBD1 connector

1995 BUICK CENTURY
200,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
Avatar
JERRY WILLIAM EXLINE III
  • MEMBER
  • 3 POSTS
I have tried connecting several scan tools to my car and non of them worked. I'm trying to get images of the wiring diagram on the ports. Can anyone help me out?
Mar 9, 2019 at 12:46 PM
Advertisement
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Avatar
ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good afternoon,

There are three possible connectors for 1995. I attached them all for you to view.

Please tell me which one you have.

Roy
Images (Click to enlarge)
Attached Media
Attached Media
Mar 9, 2019 at 3:18 PM
Avatar
JERRY WILLIAM EXLINE III
  • MEMBER
  • 3 POSTS
I'm not sure which it would be. Below is a picture of mine. It only has three pins on it.
Image (Click to enlarge)
Attached Media
Mar 10, 2019 at 12:08 PM
Advertisement
Avatar
ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 POSTS
Got it.

You have the oddball connector. You cannot bring out blink codes on that connector. You need someone with an OBD 1 scan tool with the correct connector to access the system.

GM used that for one year. It was a transition year to OBD2.

Roy
Mar 10, 2019 at 12:13 PM
Avatar
JERRY WILLIAM EXLINE III
  • MEMBER
  • 3 POSTS
Would by chance know what that connector is called or refered to as so I may be able to find a adaptor of that'll work?
Mar 10, 2019 at 12:17 PM
Advertisement
Avatar
ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 POSTS
It will not adapt to any OBD2 reader. It has to be for an OBD1 system only.
I had one for the old snap on MT 2500. I had to buy it separately from snap on.

Roy
Mar 10, 2019 at 12:25 PM