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TCM Question

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Old Jul 10, 2012 | 06:46 PM
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Kevno6
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Anyone know if Transmission control module effects tachometer. Looked at wire diagram and don't see and connection for it. For years I had issues with tach reading 0 rpms while idling and works when I drive. I replaced tcm today and it idles normal now at 800 rpm's. Just curious
 
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Old Jul 11, 2012 | 02:24 AM
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on the newer Rams I know the PCM controls the tach but you can download the Service Manual from the link in my sig and check it out. There is a copy for the 02 in there
 
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Old Jul 11, 2012 | 06:34 AM
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I looked at it but it doesn't show any wire for it.
 
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Old Jul 11, 2012 | 08:31 AM
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I looked at it but it doesn't show any wire for it.
 
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