fault code U0100 and P0700 - Chrysler 300C Forum: 300C & SRT8 Forums
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post #1 of 31 (permalink) Old 11-04-2012, 05:24 AM Thread Starter
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Smile fault code U0100 and P0700

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I have 300C HEMI 2006 model chrysler and the engine is cut out while driving.
I scan for the fault code and code U0100 and P0700 comes out.
The dealer says its TCM and want to replace.
what could be a problem?
any idea before I replace the TCM
Thanks
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post #2 of 31 (permalink) Old 11-04-2012, 08:47 AM
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Those codes mean the PCM has lost communication with the Transmission Control Module.

Before the TCM is replaced the only diagnostic to perform is to physical inspection of the transmission wiring harness connection for dirt, water, corrosion or damage.

Michael
2006 300C SRT8
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post #3 of 31 (permalink) Old 11-04-2012, 11:34 AM Thread Starter
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fault code U0100 and P0700

Thanks MADDOG, for your reply.
if that the case why the engine is cutting off during drive?
and where this TCM is allocate?
its RHD vehicles

Last edited by Dickson; 11-04-2012 at 11:40 AM.
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post #4 of 31 (permalink) Old 11-04-2012, 02:04 PM
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I had the same codes when my transmission fluid was low. Check for leaks and check the fluid level.


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post #5 of 31 (permalink) Old 11-04-2012, 05:58 PM
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Good advice! ^^^^

When the PCM loses communication with the transmission, the transmission disengages and the engine begins to shut down to avoid damage.
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post #6 of 31 (permalink) Old 11-04-2012, 11:08 PM
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For some reason Chrysler dealers always try to sell PCM and TCM without checking connection or wires.

The reason I say this because I had a Chrysler dealer replace my PCM and it turned out I just needed a throttle body. I had to pay for both, very sad.


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post #7 of 31 (permalink) Old 06-22-2014, 11:32 AM
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Quote:
Originally Posted by Dickson View Post
Thanks MADDOG, for your reply.
if that the case why the engine is cutting off during drive?
and where this TCM is allocate?
its RHD vehicles
I had the same problem with my 2006 Chrysler 300 C I took my snap on scanner and I change the field on the alternator or what is better well known as the generator field increased at 25percent and now my wifes has never ran better if you like to contact me for more information my email address is andersonmobile85@gmail.com
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post #8 of 31 (permalink) Old 10-18-2014, 03:58 PM
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This is an old post, but only one I could find that has the same problems I am. I'm new to the site and still trying to figure it out. I just bought an 06 srt8 with about 103K. Everything was fine until I upgraded the exhaust. Now when I floor it, it will jump out of gear until the rpms go down. It has stalled twice at a red light and is throwing the u0100 code. Just wondering if anyone has had similar problems and have found out how to fix it.
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post #9 of 31 (permalink) Old 04-28-2015, 09:48 AM
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P0700
U0100 on my chrysler 309 forum and engine will stall at light. Dealership said to change computer after they already reset it. I know they know abt this issue and making money off of it.
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post #10 of 31 (permalink) Old 05-30-2015, 04:49 AM
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Plz I need help I've spend over $900 dollars trying to know what's wrong with my car I have a Chrysler 300 touring and out of no where my check engine light came on with code P0700 and U0100 its turns on then like a min later turns off then I turn it on and it turns on perfect but some times when I drive it turns off but the check engine light won't stay on its just turns off HELP ME!
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