Re: How to Repair Relay Control Module (RCM) - (Mystery no Start)
AT limp mode = @ $200 DIY or @ $1500 stealership.
DIY :
new conductor plate
about 8 qt approved fluid
filter kit ( includes gasket )
transmission connector
There are lots of videos on uTube about the 722.8 conductor plate replacement.
highly recommended is a car lift and a CLEAN place to work, along with a helper ( also clean )