Expo AWD L4-2350cc 2.4L SOHC 8 Valve (1992)
Idle Speed Motor Position Sensor: Description and Operation
Idle Motor Position Switch
DESCRIPTION
The Motor Position Sensor (MPS) is a variable resistor type sensor. The MPS uses a plunger (contact) that is connected to the ISC servo and a set of
electrical windings that are stationary.
LOCATION
The MPS is located in the Idle Air Control (IAC) servo.
OPERATION
As the servo moves, so does the plunger, changing the output voltage of the sensor. The TCU uses this signal to determine the position of the ISC servo.
