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P1603 Diagnostic Trouble Code Discussion for October 2013

PCM Internal Shutdown Timer Rationality

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Trouble Ticket Help Requests for DTC P1603
Help Request Posted
2006 Chrysler PT Cruiser Touring 2.4L MIL Lamp on VIN: 3A4FY58B96
P1603: PCM Internal Dual-Port Communication Failure. ... this pt that's got me pulling my hair. has a p1603 code - pcm:- internal dual port ram commuication failure. got a used one and same thing. the trans is now in limp mode which wasn't the case before switching the computer. the weired thing is that i cannot...
October 12, 2013