No Engagement of Torque Converter Clutch (TCC)

WARNING: This page is about a different variant/trim than selected.

Check	Causes
DEFINITION: A large difference in RPM is noted between the engine speed and the transmission input turbine speed in third or fourth gear, Drive or Manual Third range when the TCC is commanded ON by the PCM.
Control Valve Body and Accumulator Assembly	TCC regulator apply valve stuck released TCC regulator apply valve spring broken
Torque Converter Housing	Transmission fluid pump cover damaged or misaligned
TCC PWM Solenoid Assembly	Stuck Off Internal damage Damaged or cut O-ring Screen damaged Electrical connector damage
Fluid Pump	Stuck, binding TCC control valve TCC enable valve Stick or binding TCC enable valve spring Misaligned gasket
Turbine Shaft	Damaged or cut O-ring
Inspect for active transmission DTCs	Transmission DTC default action active