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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System (Diagnostics) >> Inspection Mode >> Procedure >> Inspection Mode 2

Inspection Mode 2

DTC Item Note
B14A1 SUNLOAD SENSOR CIRCUIT LOW/OPEN -
B14A2 SUNLOAD SENSOR CIRCUIT SHORT-CIRCUIT -

Diagnostic procedure:

  1. Perform the Clear Memory Mode. Refer to HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)>CLEAR MEMORY MODE .
  2. Read the DTC and check that the DTC is not displayed. Refer to HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)>READ DIAGNOSTIC TROUBLE CODE (DTC) .
    NOTE: If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step  1.
  3. Park the vehicle in the place subjected to direct sunlight.
  4. Turn the ignition switch to ON and then leave it for 4 seconds or more.
  5. Read the DTC and check that the DTC is not displayed.
NOTE: If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs.