Outside Air Temperature Indicator Test

Troubleshooting: 

If the indicator displays "- - -" for more than two seconds after selecting the outside air temperature display mode, check for an open in the BRN/WHT wire between the gauge and the outside air temperature sensor or the GRY wire between the gauge assembly and the climate control unit.

Fig 1: Indicator Displaying "- - -"

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Calibration: 

The outside air temperature indicator's displayed temperature can be recalibrated to within 3 degrees to meet the customer's expectations.

1. Turn the ignition switch ON (II).
2. Push and hold the reset and select buttons for 10 seconds. While you continue to hold the buttons, the display will scroll through temperature settings from +3 to -3 as shown.
   Fig 2: Indicator Displaying Calibration

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
3. When the desired correction value appears on the display, release the buttons, and the recalibrated outside air temperature will be displayed.

   If the outside temperature indicator display is off by more than three degrees of the desired value, turn the ignition switch OFF and repeat steps 1-3.

   NOTE: To recalibrate the display to the true temperature, remove the outside air temperature sensor (A), but leave it connected. Submerge the sensor and a thermometer (B) in a container of ice water (C). Select the calibration mode as described above, then recalibrate the display to the true temperature.
   Fig 3: Submerging The Sensor And A Thermometer In A Container Of Ice Water

   Courtesy of AMERICAN HONDA MOTOR CO., INC.