Vehicle Speed Sensor: Description and Operation

VSS

Description
The vehicle speed signal is sent to the "unified meter and A/C amp." from the "ABS actuator and electric unit (control unit)" by CAN communication line. The "unified meter and A/C amp." then sends a signal to the ECM by CAN communication line.

VEHICLE SPEED SENSOR (A/T OUTPUT)

Description
ECM receives two vehicle speed sensor signals via CAN communication line. One is sent from "ABS actuator and electric unit (control unit)", and the other is from TCM (Transmission control module). ECM uses these two signals for engine control.