on my pt 2006 pt Chrysler came up with a code p1603 what does this mine ?

Question

my saner came up with a code , p1603 and a code u0101

Answer 1

P1603 PCM internal dual - port RM communication failure

U0101 Lost communication with TCM

P1603 needs to be taken really seriously,If the PCM failes you will need a new PCM and it will require the VIN to be flashed into it, For now check the charging system battery voltage key off engine not running should be above 12.5 volts,