Outside Air Temperature Indicator Calibration: Notes
NOTE:
The outside air temperature sensor test (see
OUTSIDE AIR TEMPERATURE SENSOR TEST
).
The outside air temperature sensor for the indicator is mounted behind the front bumper. Because of the location of the sensor, the temperature reading can be affected by heat reflection from the road, engine heat, and even exhaust from the surrounding traffic. These conditions can heat soak the sensor and cause inaccurate readings. To prevent abnormal or fluctuating outside air temperature indicator readings, the display uses a specific logic as shown.
The outside air is warmer than when the ignition switch was turned OFF (ACC or LOCK position):
- If the ignition switch was turned OFF for more than 2 hours, the displayed temperature when you turn the ignition switch to ON (II) stays at the ignition switch-off temperature until the vehicle has gone faster than 18 mph (11 km/h) for 30 seconds, then the display immediately updates to the measured outside air temperature.
- If the ignition switch was turned OFF for 2 hours or less, the displayed temperature when you turn the ignition switch to ON (II) and vehicle is traveling faster than 18 mph (11 km/h) for 90 seconds, will rise 1 degree every minute until the outside air temperature is reached.
The outside air is cooler than when the ignition switch was turned OFF (ACC or LOCK position):
- If the ignition switch was turned OFF for less than 2 hours, the displayed temperature when you turn the ignition switch to ON (II) is the ignition switch-off temperature. The displayed temperature then drops 1 degree every 2 seconds until the reading matches the outside air temperature.
- If the ignition switch was turned OFF for 2 hours or more, the displayed temperature is the measured outside air temperature.