Technician A says on electronically controlled transmissions, the Torque Converter Clutch (TCC) solenoid is monitored by the Powertrain Control Module (PCM) and diagnostic trouble codes can be set when the TCC is not operating correctly. Technician B says on older hydraulically controlled transmissions, the PCM will set codes if the TCC solenoid is physically stuck closed. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because in electronically controlled transmissions, the PCM monitors the TCC solenoid and can set diagnostic trouble codes if there are issues. Technician B is incorrect because older hydraulically controlled transmissions do not have PCM monitoring for setting codes related to the TCC solenoid.

Technician a Says on Electronically Controlled Transmissions, the Torque Converter