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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by kilo3031:
I do not have any marker lights on the vehicle.

They made it seem that it was located somewhere near the back of the engine and that it wasn't the BCM.

Pismo is pretty sandy and the dealer also mentioned there was sand around it. It is not possible that pismo caused my problem, since the problem happened as I was getting to the beach. It did slightly rain on my way out there and I did go over a puddle.

I'll get all the details of the part and post what it is and where it is at. </div></BLOCKQUOTE>

Back of engine sounds like the PCM; however, the PCM is a water tight component, with water tight connectors. You can pour water on the PCM all day long and it won't affect it, and if the connectors are attached correctly, water will not get in. (We have had flood cars returned where the PCM was not affected. And I mean some cars where the PCM sat underwater in slime for a week.)
Besides, the PCM controls the engine outputs and receives information from sensors. I guess in the big scheme of things, if it went totally berserk, it could cause the BCM to go berserk too. Not sure, never seen this type of symptoms with a failed PCM.
I will say it is possible, but not probable, and I can say it is possible you have a PCM that, for some reason, was not water tight. As they say, if man-made it, it can mess up.

Important thing is hopefully it is fixed.