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Home >> Honda >> 2021 >> Clarity Plug-In Hybrid >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Gauges - Testing & Troubleshooting (Plug-In) >> Symptom Troubleshooting >> Gauges - Outside air temperature indicator does not change

Gauges - Outside air temperature indicator does not change

Outside air temperature indicator does not change 

NOTE:  Outside air temperature is indicated 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, motor 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 the 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 --- ---
  • If the current outside air temperature is higher than the indicated outside air temperature the last time the vehicle OFF (LOCK) mode, and the engine coolant temperature is higher than 140 deg.F (60 deg.C): The last outside air temperature that was indicated before the vehicle OFF (LOCK) mode is displayed.
  • If the current outside air temperature is higher than the indicated outside air temperature the last time the vehicle OFF (LOCK) mode, and the engine coolant temperature is less than 140 deg.F (60 deg.C): The current temperature measured by the outside air temperature sensor is indicated.
  • If the current outside air temperature is lower than the indicated outside air temperature the last time the vehicle OFF (LOCK) mode: The current temperature measured by the outside air temperature sensor is indicated.
Indication Mode Indication Temperature Increase Indication Temperature Decrease Notes
Garage Mode Increases 1 deg.F every 1 second (or 1 deg.C every 2 seconds) to the current outside air temperature. Decreases 1 deg.F every 1 second (or 1 deg.C every 2 seconds) to the current outside air temperature. If the engine coolant temperature is less than 140 deg.F (60 deg.C) when the vehicle is in the ON mode, the mode shifts to the garage mode.
Traffic Jam Mode --- If the outside air temperature is less than the indicated temperature, the temperature decreases by 1 deg.F per 1 second (or 1 deg.C per 2 seconds).
  • If the engine coolant temperature is more than 140 deg.F (60 deg.C), the mode shifts to the traffic jam mode.
  • If 180 seconds has elapsed after detection of the vehicle speed 1.2 mph (2 km/h) or more, the mode shifts to 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 deg.F (60 deg.C).
Stable Run Mode Increases 1 deg.F every 17 seconds (or 1 deg.C every 30 seconds) to the current outside air temperature. Decreases 1 deg.F every 1 second (or 1 deg.C every 2 seconds) to the current outside air temperature. If the vehicle speed is at 18.6 mph (30 km/h) for more than 28 seconds, the mode shifts to stable run mode.
  1. PGM-FI system DTC check

    -1. Check for DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC
    P0070 Outside Air Temperature Sensor A/B Correlation    
    P0071 Outside Air Temperature Sensor A Out of Range    
    P0072 Outside Air Temperature Sensor A Circuit Low    
    P0073 Outside Air Temperature Sensor A Circuit High    

    Are any DTCs indicated?

    YES 

    Go to the indicated DTC troubleshooting.

    NO 

    Go to step 2.

  2. Outside air temperature sensor check

    -1. Test the outside air temperature sensor .

    Is the outside air temperature sensor OK?

    YES 

    Confirm the operation of the outside air temperature indicator.

    NO 

    Replace the outside air temperature sensor .