Note. For circuit and terminal identification, see WIRING DIAGRAMS .
Circuit Description
Torque Converter Clutch (TCC) fluid is regulated for apply and release by TCC Pulse Width Modulated (PWM) solenoid. When solenoid is commanded off, PCM will detect high voltage. When solenoid is commanded on, PCM will detect low voltage. DTC P1860 will set if PCM detects voltage limits which do not meet calibration at anytime.