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I have an 06 Charger RT. It is in limp mode now, bcuz I have a couple of codes on it. I've had the TCM checked, I put fluid in it, & I've also tried to reset it & it still won't work. Is there anything is i could do before taking it to the shop?

I have a pic of all the codes
 

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Nothing you can do. The shop will need to run diagnostic tests on the transmission is determine the root cause of the problem. Several of the codes are related.

P0700 = there's a diagnostic code in the TCM
U0100, U0121, U0103 = TCM lost communication with these modules for 500ms. Probably when the TCM went into recovery and limp-mode.
P0730, P0733, P0735 = either a "no shift" operation occurred or detected gear is not the actual gear. These diagnostic codes can also occur because of other codes.
P0657 = solenoid supply voltage to the TCC (torque converter clutch) is supplied by the TCM. If a major system fault is detected, this supply voltage is turned off by the TCM to ensure that no solenoids are active.
P2784 = speed difference between the transmission Input Speed Sensors is greater than 150 RPM.

The shop can look at freeze-frame information, etc... to attempt to determine which diagnostic code occurred first and which codes are a result of the first code. Sometimes there's a cascading effect where several codes occur because of a single problem. They can also run diagnostic test to hopefully recreate the problem and see what function/component is failing.
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