Technical Definition:
Torque Converter Clutch Circuit / Open
Trouble Code: P0740
Address: 0x0740
System: Powertrain
Subsystem: Transmission Controls
Address: 0x0740
System: Powertrain
Subsystem: Transmission Controls
Technical Description:
Possible Causes:
Possible Symptoms:
Torque Converter Clutch Malfunction
Possible Solutions:
OBD-II Trouble Code Type:
Diagnostic Step:
Tech Notes:
– Low transmission fluid level
– Dirty transmission fluid
– Faulty torque converter clutch solenoid valve
– Torque converter clutch solenoid valve harness is open or shorted
– Torque converter clutch solenoid valve circuit poor electrical connection
Specific Makes:
– Transmission shift shock
– Vehicle may not shift into the highest gear