FAQ section On the left...
http://www.zjstech.net/~library/16285/OBD%20codes.htm
P1000 - OBD (On Board Diagnostic) System Readiness Test Not Complete ( meens you reset the computer or disconnected the battery or the tune is not run in yet)
P0101 Mass Air Flow Circuit Range/Performance Problem ( mas air issue, Leak, wrong calibration)
B1602 PATS Received Invalid Format Of Key-Code From Ignition Key Transponder ( Old code from remote start, some one used a wrong key, )
Todd Z