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About a week ago my transmission hard shifted and went into limp mode throwing a P0750 code. I swapped out the solenoid pack, and the jeep did fine for about 30 miles then threw a P0867 code. I cant find anything on a pressure sensor. Any help or advice would be appreciated!
 

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Check your wiring harness, specifically the YL/OR wire from the Transmission Control Relay. This wire comes from the Transmission Relay in the PDC then spliced off to the PCM, Variable Line Pressure Sensor, and the Transmission Solenoid/Pressure Switch.

There is not a whole lot of information about either these codes in regards to our '05-'06 TJs, but don't condemn the PCM before checking the wiring. It could be a bad splice or a short in the harness.
 
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