Ok. I had a chance to look at the lights tonight. Turned out that not only was the left headlight dimmer than normal but in the bright (high beam) position the left side went completly off. Traced the problem to the connector at the headlight itself. The connector doesn't have any kind of latching or locking mechanism so it must have worked it's way loose. Removed and re-installed several times to make sure the contacts were clean and everything seems to be fine again. All lights work normally. Will have to watch and see if I stays in place.
Comment: Most automotive lights have a gasketed, twist lock type of connector to firmly hold the connector in place and seal the connectors from the elements. The ody connectors are a three pin push on type with no latch to hold the connection. The lamp bases most likely have a gasket to seal out water. Also, the wires are exposed to water, dirt, or what ever makes it's way into that area. They do have a silicone type grease over them to offer some protection. I don't know if the 01 or earlier models have this same arrangement. If they do it must be ok becasue I haven't heard of any troubles with the lights before this.
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2002 RP EXL-RES