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OBD plug in location

Tiny
SCOTTDANNY22
  • MEMBER
  • 1983 CHEVROLET S-10
  • 2.8L
  • V6
  • 2WD
  • MANUAL
  • 200,000 MILES
I have looked everywhere and cannot find the OBD plug in on my truck.
Friday, September 28th, 2018 AT 12:04 PM

11 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I am Danny.

It is supposed to be located under the ashtray. If it has been broken off look to see if it has been tucked away under the dash. If you have codes stored we will be happy to help diagnose. I have attached the OBD 1 how to test GM codes tutorial. Hope this helps and thanks for using 2CarPros.
Danny-

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method
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Friday, September 28th, 2018 AT 4:52 PM
Tiny
SCOTTDANNY22
  • MEMBER
  • 36 POSTS
I tore the dash apart, there is no OBD plug. Are you sure it is supposed to have one if so now what do I do?
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Saturday, September 29th, 2018 AT 10:28 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again
Yes, It has one. You might want to check under the dash to see if the plug end broke from its mount and was just stuffed under the dash somewhere.I will look for a picture in the meantime. Hope this helps and thanks again for using 2CarPros.
Danny-
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Saturday, September 29th, 2018 AT 6:34 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

I have attached a picture of what the OBD1 connector looks like. Hope this helps in your search.
Danny-
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Saturday, September 29th, 2018 AT 9:56 PM
Tiny
SCOTTDANNY22
  • MEMBER
  • 36 POSTS
I still cannot find it. Here are some photos of what is there:
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Sunday, September 30th, 2018 AT 3:36 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

You might want to see if they stuck it up somewhere in the middle of the dash?
Danny-
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Sunday, September 30th, 2018 AT 4:03 PM
Tiny
SCOTTDANNY22
  • MEMBER
  • 36 POSTS
I have taken the dash apart nothing even resembles one except for the pictures I posted. This is a 1983 GMC Tahoe pick up with a 2.8 liter v6 manual transmission two wheel drive.
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Sunday, September 30th, 2018 AT 5:18 PM
Tiny
SCOTTDANNY22
  • MEMBER
  • 36 POSTS
Can it be located anywhere else? I have traced down every wire in the dash took the whole thing apart and there just is not one.
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Tuesday, October 2nd, 2018 AT 11:28 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,085 POSTS
Hello,

I have found this image for you. Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Tuesday, October 2nd, 2018 AT 7:57 PM
Tiny
SCOTTDANNY22
  • MEMBER
  • 36 POSTS
Mine is a 1983 GMC Tahoe pick up with a 2.8. I had a retired GM mechanic tell me that they did not have them in 1983 but you say they do. Who is correct?
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Monday, October 8th, 2018 AT 11:33 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,085 POSTS
I can only go with what the manual tells me. Can you confirm no wires have been cut out and the ALDL removed?
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Tuesday, October 9th, 2018 AT 10:53 AM

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