Transmission Position Sensor/Switch: Description and Operation
PURPOSE/OPERATIONWhen the ignition switch is set ST position, the battery voltage is applied through the ignition switch and transaxle range switch to the ECM. If the selector lever is not P or N position, the battery voltage will not reach to the ECM. Based on this signal, the ECM determines the automatic transaxle load and drives the ISO motor to maintain optimum idle speed.