Join Now
International Automotive Technicians Network

P1603 Diagnostic Trouble Code Discussion for October 2013

PCM Internal Shutdown Timer Rationality


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

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
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