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GM Powertrains Diagnostic Connectors

GM Powertrains - Please select the connector for your vehicle from the options below.

 
GM Powertrains Connector 21

Diagnostic Link Connector No. 21

Year range: 1994 to 1996

Locations: Under the drivers side dash panel.


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GM Powertrains Connector 20

Diagnostic Link Connector No. 20

Year range: 1989 to 1995

Locations: Near or in the fuse box, or near the battery.
Engine bay, on drivers side inner guard.
Behind the glovebox.


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GM Powertrains Connector 82

Diagnostic Link Connector No. 82

Year range: 1989 to 1995

Locations: In or next to the fusebox under the dash panel.


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GM Powertrains Connector 19

Diagnostic Link Connector No. 19

Year range: 1989 to 1995

Locations: Near or in the fuse box, or near the battery.


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GM Powertrains Connector 12

Diagnostic Link Connector No. 12

Year range: 1988 to 1995

Locations: Near the left hand strut tower.
Near the right hand strut tower.
Near windscreen wiper motor or airflow meter wiring harness.
Engine bay, on drivers side inner guard.
Engine bay, on passengers side inner guard.
Right-hand side of firewall.
Under the passengers seat.


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GM Powertrains Connector 63

Diagnostic Link Connector No. 63

Year range: 1983 to 1995

Locations: Under the drivers side dash panel.


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GM Powertrains Connector 13

Diagnostic Link Connector No. 13

Year range: 1983 to 1995

Locations: Under the passengers side dash panel.
Under the passengers seat.
Under the drivers side kick panel.
Under the passengers side kick panel.
Above the drivers side kick panel.
Inside or below the glovebox.


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GM Powertrains Connector 80

Diagnostic Link Connector No. 80

Year range: 1980 to 1995

Locations: In the center console.


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GM Powertrains Connector 27

Diagnostic Link Connector No. 27

Year range: 1989 to 1993

Locations: Near the left hand strut tower.
Near the right hand strut tower.
Engine bay, on drivers side inner guard.
Engine bay, on passengers side inner guard.
Under the drivers side dash panel.
Behind the glovebox.
Under the drivers side kick panel.
Under the passengers side kick panel.
Above the drivers side kick panel.
In the center console.


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GM Powertrains Connector 83

Diagnostic Link Connector No. 83

Year range: 1987 to 1988

Locations: Under the drivers side dash panel.


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