Reading OBD1 computer that has OBD2 connector?

BILL TANHOFF

MEMBER
1995 OLDSMOBILE AURORA
4.0L
V8
2WD
AUTOMATIC
180,000 MILES

I have a car that has the obd1 system but came with the obd2 connector installed. Is there a way to read the codes without having to buy a scanner? It's listed above which when they were switching from Obd1 to Obd2 why it has a obd1 computer and obd2 connector.

Friday, September 2nd, 2022 AT 10:54 PM

4 Replies

JACOBANDNICKOLAS

MECHANIC
110,097 POSTS

Hi,

The vehicle should have an OBD2 system. As you mentioned, that is the year things changed. Also, I went through two manuals, and neither indicated it as OBD1. If it has the OBD2 connector, that should be how it is set up. Just for curiosity, where did you read it had an OBD2 data link connector but was an OBD1 system? I'm really interested in reading it. This could be something I never saw before.

Is the vehicle drivable? Most parts stores will scan it free of charge or even lend you a scan tool to use if it isn't drivable.

Let me know. Also, let me know what symptoms you are experiencing.

Take care,

Joe

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Friday, September 2nd, 2022 AT 11:07 PM

BILL TANHOFF

MEMBER
3 POSTS

I have had many shops that have hooked, and parts stores hook an obd2 computer up to it through the obd2 connector and it will not read that it's hooked to anything but it will tell the scan tool to turn on. Scan tools that will allow can read obd1 through an obd2 connector will read codes and talk to the car.

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Friday, July 14th, 2023 AT 8:35 PM

BILL TANHOFF

MEMBER
3 POSTS

And the car is on the road still.

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Friday, July 14th, 2023 AT 8:36 PM

JACOBANDNICKOLAS

MECHANIC
110,097 POSTS

Hi Bill, did you try using a jumper wire? If it does still have OBD1, this should work. Follow the directions in this link and let me know if you get codes:

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

Let me know.

Joe

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Saturday, July 15th, 2023 AT 9:53 PM