1995 Buick Riviera entering manual code test

1995 BUICK RIVIERA
118,000 MILES • 6 CYL • FWD • AUTOMATIC
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PWCTHT
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Some, many actually, 1994-5 General Motors vehicles either do not have a wire leading to terminal "B" of ALDL or are using OBDII style jacks w/o OBDII compatibility. These OBDI vehicles prevent the ability of pulling codes. Any help?
Nov 26, 2008 at 2:21 AM
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DOCFIXIT
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It is a one wire I believe M the only way to read is with a Tech 1 and that was a made for GM and they are the only ones with them. Problem is not to many dealers have or anyone that can use them.
Dec 1, 2008 at 8:07 AM