For 1990-2009 cars

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 ECM.
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