Just had my remote start/alarm put in, and my CEL came on. It was throwing weird codes lie 1504, 1506, and 1406. Do these mean nothing or should I be concerned?

 

my frind on a sentra speck v had the same thing after he got an aftermarket alarm with remote start put on. we cheked the codes and could not find them in the book. later he found out they were nissan (factory) anti-theft codes. i guess its nothing to worry about.

 

Reset it, rode it around a bit no light, this morning CEL came back on. Haven't pulled the codes yet tho. I think its related to when I put my key in to drive its is seeing both keys.