FixVault
Home › Acura › 2007 › RL › Repair and Diagnosis › Heating, Ventilation & A/C (HVAC) › HVAC Control Systems › HVAC › Climate Control › In-car Temperature Sensor Test

In-car Temperature Sensor Test

  1. Remove the in-car temperature sensor (see IN-CAR TEMPERATURE SENSOR REPLACEMENT  ).
  2. Compare the resistance reading between the No. 2 and No. 3 terminals of the in-car temperature sensor with the specifications shown in the graph; the resistance should be within the specifications for whatever the ambient temperature is.
    Fig 1: Resistance And Temperature Graph
    G05496612Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. If the resistance is not as specified, replace the in-car temperature sensor (see IN-CAR TEMPERATURE SENSOR REPLACEMENT  ).
    NOTE: Incorrectly applying power and ground to the in-car temperature sensor will damage it. Follow the instructions carefully.
  4. Connect battery power to the No. 1 terminal of the in-car temperature sensor, and ground the No. 4 terminal; the aspirator fan should run.
  5. If the aspirator fan did not run in step 4, replace it (see IN-CAR TEMPERATURE SENSOR REPLACEMENT  ).
About FixVault