Question about 1997 Pontiac Bonneville
You need to know Battery Voltage is very important for PCM, Sensors and so on.
With a voltmeter on the battery terminal engine off, with a good full charged battery you should read 12.6v. If not the battery needs to be charge.
Clean battery"s terminals for a good connection and ground terminal body side.
Hope it helps.
Posted on Feb 22, 2019
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Posted on Jan 02, 2017
Most likely...seems like you have a handle on it. There may be wiring diagrams available, for example Chiltons manuals...To my knowledge there exists no "internal" wiring diagrams for alternators of any make.
Posted on Jun 28, 2009
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