Question about 2002 GMC Sierra 1500
My first thought was batteries in the remotes. how do you know they are still transmitting? or if they are, if they have sufficient power to broadcast the signal that it can be picked up by the receiver? if you can access the bcm, i'd look for that data. once that is determined, then it's a matter of tracing backwards until the problem is found. personally, i prefer to start at the end (in this case the actuators in the doors) and work backwards. the most common problem in any electrical malfunction is loss of ground. power second, and failed hard parts third.
Posted on Jun 23, 2009
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Posted on Jan 02, 2017
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