In-Vehicle Sensor Circuit

IN-VEHICLE SENSOR

Component Description

In-vehicle sensor




The in-vehicle sensor (1) is located on instrument lower panel LH. It converts variations in temperature of compartment air drawn from the aspirator into a resistance value. It is then input into the front air control.

Aspirator







The aspirator (1) is located on LH side of heater and cooling unit. It produces vacuum pressure due to air discharged from the heater and cooling unit, continuously taking compartment air in the aspirator.

Diagnosis Procedure

DIAGNOSTIC PROCEDURE




SYMPTOM: In-vehicle sensor circuit is open or shorted.

Step 1-4:

Component Inspection & Special Repair Requirement

COMPONENT INSPECTION
After disconnecting in-vehicle sensor connector M34, measure resistance
between terminals 1 and 2 at sensor side, using the table given.






If NG, replace in-vehicle sensor.