Calibration Procedure
NOTE: To test the outside air temperature sensor, refer to the outside air temperature sensor test procedure .
- 1. Outside Air Temperature Indicator - Calibrate (Without Multi-Information Display (MID))
Description
The outside air temperature sensor is located behind the center of the front bumper. The gauge control module uses measurements from this sensor to display the outside air temperature.
Because of the location of the sensor, it may be affected by heat reflection from the road, engine and radiator heat, or hot exhaust from surrounding traffic.
These conditions can heat soak the outside air temperature sensor and cause inaccurate readings. Logic has been written into the gauge control module to help prevent abnormal or fluctuating outside air temperature indicator readings.
Outside Air Temperature Indicator Logic
Engine coolant temperature 140 °F (60 °C) or higher:
If the engine coolant temperature is 140 °F (60 °C) or higher when the ignition switch is turned ON (II), or the engine start/stop button is pressed to select the ON mode, the outside air temperature shone the last time the key was turned off is displayed regardless of the current temperature measured by the outside air temperature sensor.
Engine coolant temperature less than 140 °F (60 °C):
If the engine coolant temperature is less than 140 °F (60 °C) or lower when the ignition switch is turned ON (II), or the engine start/stop button is pressed to select the ON mode, the current temperature measured by the outside air temperature sensor is indicated.
Information Update to the Outside Air Temperature Indicator While Driving
Engine coolant temperature 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 continues 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 exceeds 19 mph (30 km/h). If the vehicle speed drops below 19 mph (30 km/h), the indicator does not update again until the vehicle speed has increased to 19 mph (30 km/h) or more for more than 1 minute and 30 seconds again.
Engine coolant temperature less than 140 °F (60 °C):
If the outside air temperature is less than the indicated temperature, the temperature decreases 1 °F (1 °C) every 2 seconds until the current outside air temperature indicated regardless of vehicle speed.
Fahrenheit: Celsius:
Troubleshooting If the indicator displays - - -°F (- - -°C) for more than 2 seconds after selecting the outside air temperature display mode, the gauge control module is not receiving the outside temperature signal. Check the outside temperature sensor or the outside temperature sensor circuits.
Fahrenheit: Celsius:
Calibration NOTE: The outside air temperature indicator's displayed temperature can be recalibrated ± 5 °F (± 3 °C) to meet the customer's expectations.
1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
2. Select the odometer/trip A or odometer/trip B display
3. 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 setting from +5 °F (+3 °C) to -5 °F (-3 °C) as shown.
4. 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 °F (± 3 °C) from the sensors.
Example:
Incorrect value = 68 °F (20 °C) Desired correction value = +2 °F (+1 °C) Correct value = 70 °F (21 °C) Desired correction value = -2 °F (-1 °C) Correct value = 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.
- 2. Outside Air Temperature Indicator - Calibrate (With Multi-Information Display (MID))
Description
The outside temperature sensor is located behind the middle of the front bumper. The gauge control module uses measurements from this sensor to display the outside air temperature.
Because of the location of the sensor, it may be affected by heat reflection from the road, engine and radiator heat, or hot exhaust from surrounding traffic.
These conditions can heat soak the outside air temperature sensor and cause inaccurate readings. Logic has been written into the gauge control module to help prevent abnormal or fluctuating outside air temperature indicator readings.
Outside Air Temperature Indicator Logic
Engine coolant temperature is 140 °F (60 °C) or higher.
If the engine coolant temperature is 140 °F (60 °C) or higher when turn the vehicle to the ON mode, the outside air temperature indicated the last time the key was turned off will be displayed regardless of the current temperature measured by the outside air temperature sensor.
Engine coolant temperature is 138 °F (59 °C) or lower
If the engine coolant temperature is 138 °F (59 °C) or lower when turn the vehicle to the ON mode, the current temperature measured by the outside air temperature sensor will be indicated.
Information Update to the Outside Air Temperature Indicator While Driving
Engine coolant temperature 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. It continues to increase until the current outside air temperature is indicated. So, the first change to the outside air temperature indicator is 1 minute after the vehicle speed exceeds 19 mph (30 km/h). If the vehicle speed drops below 19 mph (30 km/h), the indicator does not update again until the vehicle speed has increased to 19 mph (30 km/h) or more for more than 1 minute again.
Engine coolant temperature less than 140 °F (60 °C):
If the outside air temperature is less than the indicated temperature, the temperature decreases 1 °F (1 °C) every 2 seconds until the current outside air temperature is indicated regardless of vehicle speed.
Fahrenheit: Celsius:
Troubleshooting If the indicator displays - - -°F (- - -°C) for more than 2 seconds after selecting the outside air temperature display mode, the gauge control module is not receiving the outside temperature data from the climate control unit over the B-CAN. Check for and resolve all B-CAN related DTCs, then check the climate control system or multiplex integrated control system for DTCs.
Calibration NOTE: The outside air temperature indicator's displayed temperature can be recalibrated ± 5 °F (± 3 °C) to meet the customer's expectations.
1. Turn the vehicle to the ON mode
2. Push and hold the INFORMATION button for at least 3 seconds to enter the customizing mode
3. While in the customizing mode, select "CHANGE SETTINGS", and enter "METER SETUP". Then select "ADJUST OUTSIDE TEMP. DISPLAY", and calibrate the value with the multi-information display switch.
4. 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 °F (± 3 °C) from the sensors.
Example:
Incorrect value = 68 °F (20 °C) Desired correction value = +2 °F (+1 °C) Correct value = 70 °F (21 °C) Desired correction value = -2 °F (-1 °C) Correct value = 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.
5. The snow mark is displayed when the temperature is 37 °F (3 °C) or less the first time you turn the vehicle to the ON mode.
