2005 PT Cruiser P0765 intermittent coding and limp mode

Question

Car will code P0765 randomly and enters limp mode. If I clear the code it will usually run normally until it is shut off and sets for awhile. Changed trans. fluid and filter which was clean, not burnt and no debris in pan. Only 111000 miles. Checked EATX relay which appears to be working normally, tried new relay with no change. Hyper grounded all electrical system. Checked strut grounds. Checked and cleaned trans. solenoid D connection and checked OHMS on solenoid pack which appear to be ok. Did notice that cruise control light comes on but cruise does not work. Have read something about Chrysler had a wiring issue where they spliced some wires together going to the solenoid that have caused this problem. Where exactly is the area the splice was made?  Any other ideas what to check before I go and replace the solenoid and input/output sensors?