U0101 Communication error to TCM 2004 RX8

05-25-2015, 01:49 PM

#1

Bdunn

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U0101 Communication error to TCM 2004 RX8

I have a 04 RX8. The car will start but will not get going over 30 mph. Engine light is on and giving a U0101 Communication error to TCM. Help what does this mean and how do I fix it?
Thanks, Brian

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05-25-2015, 03:45 PM

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04Green

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TCM, is that throttle control module?

Check the connector on the throttle body.

Auto or Manual. more data would help. If auto, could be transmission control module.

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05-25-2015, 04:45 PM

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Colon Terminus

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I believe that's the Transmission Control Module

AT, right?

Try the 20 brake stomp reset.

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05-26-2015, 08:04 AM

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Bdunn

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Yes, it TCM Transmission Control Module. i tried the 20 Brake Stomp Reset. It did reset and the service engine light went off until i restarted the car a it came right back on. I have an automatic transmission.

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