2006 Chrysler PT Cruiser check engine light on

93,000 MILES • 2.4L • 4 CYL • FWD • AUTOMATIC
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ZEMORZEMOR
  • MEMBER
  • 486 POSTS
Codes
P01603 Pcm internal dual port ram communication failure
p0700 transmission control system (mil request)
u0101 lost communication with Tcm
p063a generator voltage sense circuit however I check the alternator it charging the problem is the connector of the alternator.
po882 tcm power input signal low
po714 transmission fluid sense A circuit intermitent
po218 transmission fluid overtempurture condition
po1684 battery has been disconnected within last 50 starts

Today I tried to erase these code I know its not recommended to do it but when I tried to erase the codes it failed
I checked reference voltage for intake air temp it was 5 volts
The car starts and runs
What could be the problem please
Apr 1, 2015 at 3:31 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
I feel it is all related to the PCM issue (P1603). Chances are the PCM needs replaced which isn't a cheap part. Plus, the new PCM will need flashed based on your vehicle's VIN number. My suggestion at this point is to have the PCM itself tested.
Apr 1, 2015 at 3:09 PM
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