On electronically controlled transmissions, the operation of the Torque Converter Clutch (TCC) solenoid is monitored by the Powertrain Control Module (PCM) and can, but may not always, set Diagnostic Trouble Codes (DTCs) if a fault is present.

Question

Quizplus · Accepted Answer

The PCM monitors the TCC solenoid operation and can set DTCs if it detects a fault, but it may not always do so depending on the nature of the fault and the vehicle's diagnostic system.

On Electronically Controlled Transmissions, the Operation of the Torque Converter