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Table of Contents > Humidity/In-Car Temperature Sensor Test

Honda CR-V Heating, Ventilation & Air Conditioning Troubleshooting ➜ Humidity/In-Car Temperature Sensor Test

kohms.  
5. Reconnect the driver's air mix control motor connector.  
6. Turn the ignition switch to ON (II).  
7. Using the backprobe set, measure the voltage between terminals No. 1 and No. 2.  
MAX COOL: About 0.5 V  
MAX HOT: About 4.0 V  
8. If either the resistance or the voltage readings are not as specified, replace the driver's air mix  
control motor.  
HUMIDITY/IN-CAR TEMPERATURE SENSOR TEST  
TEST  
NOTE:  
1. Humidity Sensor - Test  
NOTE:  
Before testing the sensor, check for climate control DTCs.  
The climate control unit receives humidity (%) data via digital  
transmission.  
1. Turn the ignition switch to LOCK (0).  
2. Press and hold both the AUTO (A) and RECIRCULATION (B) buttons, then start the engine.  
3. After the engine starts, release both buttons. The climate control unit will flash the sensor number  
and then the value for that sensor.  
4. Press the REAR WINDOW DEFOGGER button (C) until the humidity "C" is displayed. For details  
about the displayed content.  
5. If the value is far from the actual humidity, replace the humidity/in-car temperature sensor.  
Fig. 98: Identifying Auto, Recirculation And Rear Window Defogger Buttons  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
2. In-Car Temperature Sensor - Test  
NOTE:  
The climate control unit receives in-car temperature (Β° C) data via digital  
transmission.  
1. Turn the ignition switch to LOCK (0).  
2. Press and hold both the AUTO (A) and RECIRCULATION (B) buttons, then start the engine.  
3. After the engine starts, release both buttons. The climate control unit will flash the sensor number  
and then the value for that sensor.  
4. Press the REAR WINDOW DEFOGGER button (C) until the in-car temperature "2" is displayed.  
For details about the displayed content.  
5. If the value is far from the actual in-car temperature, replace the humidity/in-car temperature  
sensor.  
Fig. 99: Identifying Auto, Recirculation And Rear Window Defogger Buttons  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
HVAC CONTROL POWER AND GROUND CIRCUIT TROUBLESHOOTING