P0700 Transmission fault detected MIL light requested
U0100 Lost communication with PCM
These 2 code may have been set when the engine stalled, U0100 will set when the RPM is less than 850 rpm, P0700 the key on engine stalled, this will set a P0700, To track a condition as stalling, keep track of certain events, See if this TSB fits any of your events
GROUP: Fuel System
DATE: April 22, 2014
Engine Stall Immediately Following Fill-Up (X53 Lifetime Warranty Extension)
This bulletin involves replacing the with a revised part.
2005 - 2006 LX 300/Charger/Magnum
NOTE :This bulletin applies to vehicles equipped with a 19 gallon (sales code NFK).
Some customers may experience an engine stall condition just after filling the fue tank.
The integral multi-functional control valve may allow liquid fuel to enter the emission system causing a rich fuel condition when the purge system is initiated..
If the customer describes the symptom/condition, perform the Repair Procedure.