Celica L4-1998cc 2.0L DOHC (3S-GE) (1986)
Cabin Temperature Sensor / Switch: Testing and Inspection
In-Car Sensor
In-Car Sensor Terminal Location
In-Car Sensor Testing
Check the sensor resistance.
NOTE: If there is an open circuit in the sensor, the system will operate at maximum heating.
Conversely, if there is a short in the system, it will operate at maximum cooling.