Cabin Temperature Sensor / Switch: Testing and Inspection

In-vehicle Sensor Circuit

COMPONENT DESCRIPTION







In-vehicle Sensor
The in-vehicle sensor is located on cluster lid D. It converts variations in temperature of passenger compartment air (drawn in through the integrated fan) into a resistance value. It is then input into the front air control.

Diagnostic Procedure For In-vehicle Sensor (Steps 1 - 4):

Diagnostic Procedure For In-vehicle Sensor (Steps 5 - 6):

DIAGNOSTIC PROCEDURE FOR IN-VEHICLE SENSOR
SYMPTOM: In-vehicle sensor circuit is open or shorted. Using the CONSULT-II, DTC B2578 or B2579 is displayed. Without a CONSULT-II code 30, 31, 44 or 46 is indicated on front air control as a result of conducting self-diagnosis.

COMPONENT INSPECTION




In-vehicle Sensor
After disconnecting in-vehicle sensor connector M32, measure resistance between terminals 1 and 4 at sensor component side, using the table.
If NG, replace in-vehicle sensor.