Dodge Journey: Sensor, ambient temperature
DESCRIPTION
Fig. 33: Identifying Ambient Air Temperature Sensor
The ambient air temperature sensor is a variable resistor that monitors the air temperature outside of the vehicle.
The ATC system uses the sensor data to maintain optimum cabin temperature levels. The ambient air temperature sensor is mounted inside the front fascia.
OPERATION
The ambient air temperature sensor is a variable resistor that operates on a 5-volt reference signal sent by the Totally Integrated Power Module (TIPM). The ambient air temperature sensor is connected to the TIPM through a two-wire lead and connector of the vehicle wire harness. The ambient air temperature sensor changes its internal resistance in response to changes in the outside air temperature, which either increases or decreases the reference signal voltage read by the TIPM. The TIPM converts and broadcasts the sensor data over the Controller Area Network (CAN) IHS bus, where it is read by the ATC A/C-heater control, Powertrain Control Module (PCM) and other vehicle control modules.
The ambient air temperature sensor is diagnosed using a scan tool.
The ambient air temperature sensor cannot be adjusted or repaired and must be replaced if inoperative or damaged.
Resistor, blower motor, front
DESCRIPTION
Fig. 30: Blower Motor Resistor - Description
A blower motor resistor is used on vehicles equipped with the manual
temperature control (MTC) heating-A/C
system. Vehicles equipped wit ...
Sensor, evaporator temperature
DESCRIPTION
Fig. 34: Evaporator Temperature Sensor-Description
The evaporator temperature sensor measures the temperature of the conditioned
air downstream of the A/C
evaporator. The evaporator ...
See also:
Description
Fig. 90: HVAC housing assembly
NOTE: LHD model shown RHD model similar.
All models are equipped with a common HVAC housing assembly that combines A/C
and heating capabilities
into a single ...
FUSES
Totally Integrated Power Module
The Totally Integrated Power Module (TIPM) is located
in the engine compartment near the air cleaner assembly.
This center contains fuses and relays.
Totally Inte ...
Valve, exhaust gas recirculation (EGR), 2.0L Diesel
Description
The EGR valve is mounted to the intake manifold.
Operation
The engines use Exhaust Gas Recirculation (EGR) systems. The EGR system
reduces oxides of nitrogen (NOx)
in engine exhaust ...