Codes p1603, u0101 and p0700

2006 CHRYSLER PT CRUISER
200,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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IVAN COTA
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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.
Sep 6, 2019 at 7:33 AM
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ASEMASTER6371
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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
Sep 6, 2019 at 8:05 AM
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IVAN COTA
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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?
Sep 6, 2019 at 8:19 AM
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ASEMASTER6371
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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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Sep 6, 2019 at 8:30 AM
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IVAN COTA
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Okay, great. so c1 connector is the black color right? and need to test pin 11 for power and ground where pins are? Thanks
Sep 6, 2019 at 8:37 AM
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ASEMASTER6371
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It is grounded. Otherwise, you would have no light and the engine would not run.

Roy
Sep 6, 2019 at 8:53 AM
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IVAN COTA
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Okay, thanks. i will do that!
Sep 6, 2019 at 8:56 AM
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ASEMASTER6371
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You are welcome.

always glad to help.

Roy
Sep 6, 2019 at 8:57 AM