Pontiac Problems? Ask a Mechanic for Answers ASAP
Hi, I am Mike, welcome. I'm reviewing your question.
before that hook up a voltmeter to a good ground and check the voltage available at the drivers side headlight. If the voltage is 12 volts (battery voltage) then check the ground if not and the voltage is low, the problem is with the feed not the ground. Plus, is it both the high and low beam that are dim?