Torque Converter Operation Concerns: Always Applied/Stalls Vehicle

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Possible Component	Reference/Action
242 - ROUTINE
Transmission Fluid
Incorrect level	CHECK the transmission fluid level. ADJUST transmission fluid to correct level. REFER to TRANSMISSION FLUID LEVEL CHECK .
Fluid condition	CHECK transmission fluid condition. REFER to PRELIMINARY INSPECTION .
Powertrain Control System
PCM, vehicle wiring harnesses, main control molded leadframe, Torque Converter Clutch (TCC) solenoid or Transmission Fluid Temperature (TFT) sensor	If DTCs are set, CLEAR the DTCs. CARRY OUT the Key ON Engine OFF (KOEO) and Key ON Engine Running (KOER) self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A for TCC solenoid diagnosis and GO to PINPOINT TEST B for TFT sensor diagnosis.
Main Control
Molded leadframe - contamination	REMOVE the main control assembly, REFER to MAIN CONTROL . INSPECT and CLEAN the TCC solenoid terminals on the main control molded leadframe for metallic contamination, REFER to SHIFT SOLENOIDS (SS) . INSTALL the main control assembly. CLEAR the DTCs. ROAD TEST the vehicle. If the symptom returns, GO to PINPOINT TEST A to diagnosis the Torque Converter Clutch (TCC) or GO to PINPOINT TEST B to diagnosis the Transmission Fluid Temperature (TFT) sensor.
Main control assembly contaminated, solenoid(s) damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged	INSPECT for damage. If damaged, install a new main control assembly. REFER to MAIN CONTROL .
Main control assembly bolts - not tightened to specification	TIGHTEN to specification.
Torque Converter
Torque converter components	REMOVE the transmission. INSPECT for damage. INSTALL a new or remanufactured torque converter. REFER to TRANSMISSION - FOUR WHEEL DRIVE (4WD) or TRANSMISSION - REAR WHEEL DRIVE (RWD) .