The sensor must be hot in order to operate normally. To keep it hot, the sensor has a heater which is controlled by the ECM via a duty cycle signal. When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.
TCM Terminal Input/ Output Signal
Connector [CHTG-AG]
Pin
Description
Condition
Input/output value
Type
Level
1
-
...
Removal
1.
Disconnect the negative (-) battery
terminal.
2.
Remove the seat control switch
(A).
3.
Remove the seat side cover (A).
(Refer to the BD ...
Ambient Sensor. Description and Operation
Description
1.
The ambient temperature sensor
is located at the front of the condenser and detects ambient air temperature.
It is a negative type thermistor; resistance will increas ...