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Codes P1603, U0101 and P0700

Tiny
IVAN COTA
  • MEMBER
  • 2006 CHRYSLER PT CRUISER
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Hello, my car in the mornings shifts just good but when the sun heats up it won’t shift. It gets stuck in second sometimes. Works by turn it off and on.
Friday, September 6th, 2019 AT 7:33 AM

7 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

Does the check engine light come on with the key on?

Yes, it looks like a failed PCM.

Roy

P1603
Descriptor
Pcm Internal Dual-Port Ram Communication Failure
Probable Causes
Powertrain Control Module (PCM) Fused Ignition Switch Circuit
Powertrain Control Module (PCM) Internal
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Friday, September 6th, 2019 AT 8:05 AM
Tiny
IVAN COTA
  • MEMBER
  • 4 POSTS
Good morning. Yes, check engine on. I would like to know if I have to check for power and ground connection it could be the harness right? If you can provide me with PCM connector to test that would be great. Or do you think the PCM has failed for sure because of the codes thanks?
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Friday, September 6th, 2019 AT 8:19 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I will attach the diagram of the connector for the power for you.

If the light comes on, then it is getting power. Sounds like the PCM has failed.

Roy
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Friday, September 6th, 2019 AT 8:30 AM
Tiny
IVAN COTA
  • MEMBER
  • 4 POSTS
Okay, great. So c1 connector is the black color right? And need to test pin 11 for power and ground where pins are? Thanks
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Friday, September 6th, 2019 AT 8:37 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It is grounded. Otherwise, you would have no light and the engine would not run.

Roy
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Friday, September 6th, 2019 AT 8:53 AM
Tiny
IVAN COTA
  • MEMBER
  • 4 POSTS
Okay, thanks. I will do that!
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Friday, September 6th, 2019 AT 8:56 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Friday, September 6th, 2019 AT 8:57 AM

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