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Outside Air Temperature Indicator Calibration

Description
The outside 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 soak the outside air temperature sensor in heat 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
Initial outside air temperature is indicated after the ignition switch is turned ON (II).
  • If the engine coolant temperature is 60 °C (140 °F) or higher when the ignition switch is turned ON (II), 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.
  • If the engine coolant temperature is 59 °C (139 °F) or lower when the ignition switch is turned ON (II), the current temperature measured by the outside air temperature sensor will be indicated.

Troubleshooting
If the indicator displays — — — °C (or — — — °F) for more than 2 seconds after selecting the outside air temperature display mode, check the outside air temperature sensor, or gauge control module self-diagnostic function.

Calibration
The outside air temperature indicator's displayed temperature can be recalibrated ±3 °C (or ±5 °F) to meet the customer's expectations.
  1. Turn the ignition switch ON (II).
  1. Push and hold the INFO switch for more than 3 seconds to enter the customizing mode.
  1. While in the customizing mode, select and enter the ‘‘CHG SETTING''. Then select and enter the ‘‘ADJUST OUTSIDE TEMP. DISPLAY'', and calibrate the value with the SEL/RESET switch and the INFO switch.

  1. When the desired correction value appears on the display, release the button, and the recalibrated outside air temperature will be displayed.

    Example:

    Incorrect value
    =
    20 °C (68 °F)
    Desired correction value
    =
    +1 °C (+2 °F)
    Correct value
    =
    21 °C (70 °F)
    Desired correction value
    =
    −1 °C (−2 °F)
    Correct value
    =
    19 °C (66 °F)



    NOTE: The recalibration temperature is not the value the sensor sees.
    Therefore the temperature can only be adjusted ±5 degrees from sensors.
    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.

  1. Snow mark is enlarged when the temperature becomes 3 °C (37 °F) or less for the first time during turning the ignition switch ON (II).