TIAGOR

HVAC

PIN DETAILS

PIN NO DESCRIPTION

Temperature out to control panel

Ground

NOTE



Refer Thermistor / Thermo sensor removal and

installation process

from On Vehicle repairs.

VEHICLE

INSPECTION

(WITHOUT

DISMANTLING HVAC UNIT)

Since the thermistor is mounted inside HVAC unit to

conduct the above test HVAC unit has to be

dismantled.

Alternatively following test can be conducted without

dismantling the HVAC unit:

1. Switch OFF the HVAC unit and allow the HVAC

unit to come to ambient temperature.

2. .Open the glow box & lowering Glove box lid.

3. Disconnect the Pigtail connection.

4. Measure the resistance it should match to the

ambient temperature. Refer graph in Inspection

topic.

As given in the graph above

(~ 5 Ohms or less for

ambient temperature of 25ºC and above)