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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
From what you say, it sounds like the switch to me but the only way to be sure it to take it out and do a continuity test with a meter several times to make sure and then proceed from there.