Gauges - Outside Air Temperature Indicator Does Not Change
Outside air temperature indicator does not change
NOTE: The outside air temperature sensor reports the outside temperature directly to the climate control unit. This value is then sent from the climate control unit to the gauge control module via the B-CAN. The outside air temperature indicated is a calculation made by the gauge control module based on the measurement value of the outside air temperature sensor located behind the center of the front bumper. 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. To display the outside air temperature, the gauge control module has an indication mode based on engine coolant temperature and vehicle speed. Some modes do not raise the temperature indication, so the outside air temperature indication may not change when the mode continues.
Outside Air Temperature Indication Mode
| Indication Mode | Indication Temperature Increase |
Indication Temperature Decrease |
Notes |
|---|---|---|---|
| Initial Indication | - - - | - - - |
|
| Garage Mode | Increases 1 °F every 1 second (or 1 °C every 2 seconds) to the current outside air temperature. | Decreases 1 °F every 1 second (or 1 °C every 2 seconds) to the current outside air temperature. |
|
| Traffic Jam Mode | - - - | If the outside air temperature is less than the indicated temperature, the temperature decreases by 1 °F per 1 second (or 1 °C per 2 seconds). | If the engine coolant temperature is more than 140 °F (60 °C) and vehicle speed is 1.2 mph (2 km/h), the mode shifts to the traffic jam mode. NOTE: Once entering to the traffic jam mode, the mode does not shift to the garage mode even after the engine coolant temperature goes below 140 °F (60 °C). |
| Predictive Mode | If the temperature measured by the outside air temperature sensor is greater than the predicted value, the outside temperature indicator increases by 1 °F per 33 seconds (or 1 °C per 1 minute). | If the temperature measured by the outside air temperature sensor is smaller than the predicted value, the outside temperature indicator decreases by 1 °F per 33 seconds (or 1 °C per 1 minute). | Calculates the true outside air temperature from the sensor value at the time the vehicle starts running and the amount of change of the sensor value. |
| Stable Run Mode | Increases 1 °F every 33 seconds (or 1 °C every 1 minute) to the current outside air temperature. | Decreases 1 °F every 1 second (or 1 °C every 2 seconds) to the current outside air temperature. | When the predictive mode continues for 11 minutes or the outside air temperature goes below the temperature being displayed during the predictive mode, the mode shifts to the stable run mode. |
- Gauge control module DTC check
-1. Check for DTCs with the HDS
DTC Description DTC Are any DTCs indicated?
YES
Go to the indicated DTC troubleshooting.
NO
Go to step 2
- A/C system DTC check
-1. Check for DTCs with the HDS.
DTC Description DTC B1227 An open in the outside air temperature sensor circuit B1228 A short in the outside air temperature sensor circuit U1280 Communication bus line error (BUS-OFF) U128D Lost communication with gauge control module Is DTC B1227 or B1228 indicated?
YES
Go to the indicated DTC troubleshooting.
NO
Go to step 3.
- Outside air temperature sensor check
-1. Test Outside Air Temperature Sensor - Test
Is the outside air temperature sensor OK?
YES
Confirm the control method of the outside air temperature indicator.
NO
Replace the Outside Air Temperature Sensor - Removal and Installation .