DTC C1240 KIA
Torque Converter Clutch (TCC) - Stuck On
Torque Converter Clutch (TCC) - Stuck On
Description
P0742 No other ECM or TCM DTCs are set. DTC P0742 has not passed this key ON. Ignition voltage is 8.6 volts or greater. The engine speed is 400 RPM or greater for 5 seconds. The transmission fluid temperature (TFT) is -6.6 to +130°C (+20 to +266°F). The accelerator pedal position signal is valid. The throttle position is greater than 8 percent. The TCM must receive a valid torque signal from the ECM. The engine torque is greater than 115 N·m (85 lb ft). The vehicle speed is greater than 16 km h (10 mph). The gear ratio is between 0.62-1.63. The commanded gear is 2nd. The TCC is commanded OFF.
Cause and Solution
The TCM detects the TCC slip between -12 and +13 RPM for 6 seconds when the TCC is commanded OFF. This must occur 2 times.
Video Guide
Diagnostic Info
- DTC Code: C1240
- Brand: KIA