Technician A says electronic control of the line pressure (pump output)controlled by the EPC solenoid allows the transmission control module (TCM)to vary the pressure used to apply the clutches. Technician B says that the electronic pressure-regulator valve can adjust pressure for one gear shift. Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

​Technician A says electronic control of the line pressure (pump output)controlled by the EPC solenoid allows the transmission control module (TCM)to vary the pressure used to apply the clutches. Technician B says that the electronic pressure-regulator valve can adjust pressure for one gear shift. 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. Electronic control of the line pressure (pump output) is indeed controlled by the EPC solenoid, allowing the TCM to vary the pressure used to apply the clutches. The electronic pressure-regulator valve can also adjust pressure for one gear shift.

​Technician a Says Electronic Control of the Line Pressure (Pump

Technician a Says Electronic Control of the Line Pressure (Pump