Operation CHARM: Car repair manuals for everyone.
Home >> Jeep >> 2007 >> Wrangler V6-3.8L >> Repair and Diagnosis >> Heating and Air Conditioning >> Ambient Temperature Sensor / Switch HVAC >> Description and Operation >> Operation
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Operation






OPERATION

The ambient temperature sensor is a variable resistor that operates on a five-volt reference signal. The resistance in the sensor changes as temperature changes, changing the temperature sensor signal circuit voltage to the Totally Integrated Power Module (TIPM). Based upon the resistance in the sensor, the instrument cluster or Cab Compartment Node (CCN) display senses a specific voltage on the Controller Area Network (CAN) data bus circuit, which corresponds to a specific temperature. The compass/temperature display unit then displays the proper ambient temperature.
pro multis · About Operation CHARM