While discussing transmission solenoids: Technician A says the TCM relies on information from the engine control system, transmitted through such sensors as the MAP and TP sensor, as well as information from the transmission, to determine the optimum shift timing. Technician B says a TCC solenoid can be pulse-width modulated to smooth the engagement of the torque converter clutch. Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

While discussing transmission solenoids: Technician A says the TCM relies on information from the engine control system, transmitted through such sensors as the MAP and TP sensor, as well as information from the transmission, to determine the optimum shift timing. Technician B says a TCC solenoid can be pulse-width modulated to smooth the engagement of the torque converter clutch. Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Quizplus · Accepted Answer

Both technicians are correct. The TCM does rely on information from the engine control system and transmission to determine the optimal shift timing, and a TCC solenoid can be pulse-width modulated to provide a smoother engagement of the torque converter clutch.

While Discussing Transmission Solenoids: Technician a Says the TCM Relies