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Evaporator Temperature Sensor / Switch

Sensors and Switches › Sensors and Switches - HVAC
Unified entry — merged from multiple cross-listed pages in the original manual.

Parts

PartThermostatic Switch
ManufacturerCHY
OEM part #5143149AA
Price$13.45
Procedures
Evaporator Temperature Sensor - Installation3 steps
ℹ NOTE
Illustration shown with instrument panel removed for clarity.
ℹ NOTE
LHD model shown. RHD model similar.
Fig. 1
Fig. 1
  1. Install the evaporator temperature sensor (1) into rear of the HVAC housing (2) and connect the instrument panel wire harness connector.
  2. Install the instrument panel Instrument Panel - Installation.
  3. Reconnect the negative battery cable.
Evaporator Temperature Sensor - Removal3 steps
⚠ WARNING
Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable and wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury.
ℹ NOTE
Illustration shown with instrument panel removed for clarity.
ℹ NOTE
LHD model shown. RHD model similar.
Fig. 1
Fig. 1
  1. Disconnect and isolate the negative battery cable.
  2. Partially remove the instrument panel to gain access to the evaporator temperature sensor (1) located in the rear of the HVAC housing (2), near the bottom of the instrument panel on the passenger side Instrument Panel - Removal.
  3. Disconnect the instrument panel wire harness connector from the evaporator temperature sensor and remove the sensor from the HVAC housing.
Evaporator Temperature Sensor - Descriptionreference
ℹ NOTE
Typical evaporator temperature sensor shown.
Fig. 1
Fig. 1
DESCRIPTION The evaporator temperature sensor (1) measures the temperature of the conditioned air downstream of the A/C evaporator (2). The evaporator temperature sensor is an electrical thermistor within a molded plastic case that is inserted into rear the HVAC housing (3) near the coldest point of the A/C evaporator. Two terminals within the connector receptacle (4) connect the sensor to the vehicle electrical system through a wire lead and connector of the instrument panel wire harness. The external location of the evaporator temperature sensor allows the sensor to be removed or installed without disturbing the refrigerant in the A/C system.