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I have a 1994 Buick Regal with the 3.1 engine. My data link…

Customer Question
I have a 1994...

I have a 1994 Buick Regal with the 3.1 engine. My data link connector does not have the 12 pin connector. It has only 4 female pin connectors in it. Am the original owner, so nothing has been changed. Cannot use the paper clip method to retrieve codes, and I only have an OBII Code retriever. Never saw a pre 96 with only 4 pin before. Is this something that GM did, and do I need a OBD I scanner to retrieve the codes. Thank you

Mechanic's Assistant: Do you have a scan tool to read the codes?

I just said I do not. I have a OBD II scan tool.

Mechanic's Assistant: Are you fixing your Regal yourself? What have you tried so far?

Well, I said you cannot use the paper clip method on this one since it does not have an A & B connector, and I do not have a OBD I scan tool.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Just if this type of connector was used on some of the GM vehicles before the OBD II was put into effect.

Submitted: 7 months ago.Category: Buick
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Answered in 22 minutes by:
9/27/2017
Buick Mechanic: Tracer, ASE Certified Technician replied 7 months ago
Tracer
Tracer, ASE Certified Technician
Category: Buick
Satisfied Customers: 13,274
Experience: ASE Master tech, l1 , Shop owner, foreign and domestic and LT
Verified

Hello, sorry for the delay,. Possible you can take a picture of that plug as well as list the wire colors going to it? You can upload pictures to this post. Also, the full VIN# ***** help, Thanks

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Customer reply replied 7 months ago
I called Buick while waiting. It seems that some of the GM vehicles started switching to the OBD II system from 1993 on up. The 94, and 95's had a different Data Link Connector that didn't allow for the old paper clip method. They used a totally different connector than either the OBD I, or OBD II. There is no scan tool available for sale for this connector since it was only used for two years. If I can find an old mechanic that has one, or a dealer that still has one I might be able to read them. That is probably not going to happen on a 24 year old car. All GM dealers I called do not have one anymore. Called a few mechanics, and they did not have one, or never heard of it. There is no adapter for this either. Either you have one of these scanners, or you are basically out of luck. Just thought you might like to know.
Buick Mechanic: Tracer, ASE Certified Technician replied 7 months ago

Yes, aware of all of this. I will opt out as I needed add'l information I requested. Sry could not continue helping

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