P0742 OBD Trouble Code

Torque Converter Clutch Circuit Stuck On

TCC System Stuck Off Conditions (4L60-E Transmission)

DTC P0107, P0108, P0122, P0123, P0502, P0503, P0740, P1810 and P1860 not set, engine speed 1000-3000 rpm, throttle position from 17-45%, Fuel Cutoff not active, engine vacuum from 0-105 kPa, engine torque from 50-400 ft-lbs, speed ratio from 0.64-1. 35, commanded gear not in 1st, gear range did not change for 5 seconds, gear range is D4, TCC commanded off, vehicle speed is 15-50 mph, then the VCM detected that the TCC slip speed was from -20 to +20 rpm for over 5 seconds, conditions occurred twice