How do I read codes from a 1993 Bonneville SE?
Thread Starter
Junior Member
Joined: Jul 2007
Posts: 2
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From: Tipp City, OH
How do I read codes from a 1993 Bonneville SE?
I'm familiar with jumping the A and B terminals on the ALDL connector, but the B terminal is empty on my car. The Haynes manual says that some '93 models are configured this way, and "the codes have to be read by the dealer" or something.
I've noticed a small momentary push-button switch behind the ALDL connector. Do I have to do something with that switch to get the codes out of this car?
Many thanks in advance.
I've noticed a small momentary push-button switch behind the ALDL connector. Do I have to do something with that switch to get the codes out of this car?
Many thanks in advance.
Retired Senior Admin
Expert Gearhead
Joined: May 2006
Posts: 29,661
Likes: 43
From: Sheboygan Wisconsin
Take a look at this, https://www.gmforum.com/specifications-general-information-132/obd1-codes-retrieval-gm-1983-95-cars-trucks-%2A%2A-278820/ Make sure your looking at the plug right, sometimes it'* upside down.
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