3000GT V6-3.0L SOHC (1998)
Vehicle Speed Sensor: Testing and Inspection
Vehicle Speed Sensor Circuit Test
OPERATION
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The vehicle speed sensor is directly attached to the speedometer driven gear in the transmission. It detects the vehicle speed and sends it to the
engine control module after converting to pulse signals, based on which the engine control module controls the idle speed control motor.
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The output terminal of the vehicle speed sensor has a voltage of approx. 5 V applied from the control module. The vehicle speed sensor generates
pulse signals by turning on and oft the power transistor.
TROUBLESHOOTING HINTS
If there is an open or short circuit in the vehicle speed sensor signal circuit, the engine may stall when the vehicle is decelerated to stop.
HARNESS INSPECTION
