Technician A says a VSS is a sensor that transmits high voltage pulses. Technician B says a VSS measures electronic wear in the TCM. Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Neither A nor B. A VSS (Vehicle Speed Sensor) is a sensor that measures the speed of the vehicle and sends that information to the engine control module (ECM) or transmission control module (TCM). It does not transmit high voltage pulses nor does it measure electronic wear in the TCM.

Technician a Says a VSS Is a Sensor That Transmits