Tracker 4x2 L4-1590cc 1.6L (1991)
Transmission Position Switch/Sensor: Description and Operation
Shift Switch Position
Located on the transmission, it turns "ON" when the select lever is in the park or neutral position. The ECM detects whether the transmission is in the
park or neutral state, or in any other state through this "ON/OFF" signal. It is also used as one of the signals to control ISC solenoid valve and fuel
injection time.