can someone explain how I check to see if my tcc(torq conv. lock-up) is actually locking up when it should??? which wire should have voltage/or/no voltage??

 

The TCC PWM Solenoid Valve controls the fluid acting on the converter clutch valve, which then controls the application and release of the TCC. The solenoid attaches to the control valve body within the transmission. Circuit supplies ignition voltage directly to the solenoid. The PCM controls the solenoid by providing a ground path on the circuit. Current flows through the solenoid coil according to the duty cycle (percentage of ON and OFF time). The TCC PWM Solenoid Valve provides a smooth engagement of the torque converter clutch by operating during a duty cycle percent of ON time.So pretty much you are testing for a pulse width ground, the power should always be active. Sorry I can't find any schematics for ya, good luck.