Update to the outside air temperature indicator while driving
Engine coolant temperature is 140°F (60°C) or higher: If the temperature measured by the outside air temperature sensor is greater than the temperature on the outside air temperature indicator, the outside temperature indicator will increase by 1°F (1°C) per minute after the vehicle speed is greater than 19 mph (30 km/h) for more than 1 minute and 30 seconds It will continue to increase until the current outside air temperature is indicated So, the first change to the outside air temperature indicator is 1 minute and 30 seconds after the vehicle speed is greater than 19 mph (30 km/h) If the vehicle speed drops below 19 mph (30 km/h), the indicator will not update again until the vehicle speed is increased to 19 mph (30 km/h) or more for more than 1 minute and 30 seconds again.
Engine coolant temperature is less than 140°F (60°C): If the engine coolant air temperature is less than HOT (60°C), the temperature displayed increases 1°F (1°C) every 2 seconds until the current outside air temperature is displayed
If the outside air temperature is less than the indicated temperature, the temperature will decrease 1°F (1°C) every 2 seconds until the current outside air temperature is indicated regardless of vehicle speed.
Troubleshooting
If the indicator displays "- - -" for more than 2 seconds after selecting the outside air temperature display mode, the gauge is not receiving the outside temperature data from the climate control unit over the B-CAN Check the climate control system or multiplex integrated control system for DTCs (see B-CAN System Diagnosis Test Mode A) (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A )
Calibration Procedure
The outside air temperature indicator's displayed temperature can be recalibrated ±5°F or ±3°C to meet the client's expectations.
- Turn the ignition switch to ON (II).
- Select the outside air temperature display and press and hold the SELECT/RESET knob for 10 seconds. While you continue to hold the button, the display will scroll through temperature settings from +5 °F to -5 °F (or +3 °C to -3 °C) as shown.
- When the desired correction value appears on the display, release the button, and the recalibrated outside air temperature will be displayed.
- When the desired correction value appears on the display, release the button, and the recalibrated outside air temperature will be displayed.NOTE: The recalibration temperature is not the value the sensor sees. Therefore the temperature can only be adjusted ±5 ° from the sensors reading. Each time a desired correction value is entered, it replaces the previous value.
Example:
Incorrect value = 68°F (20°C)
Desired correction value Correct value = +2°F (+1°C) = 70°F (21°C)
Desired correction value Correct value = -2°F (-1°C) = 66°F (19°C)
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.