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PINPOINT TEST I: UNABLE TO DUPLICATE THE CUSTOMER CONCERN AND NO DTCs PRESENT

WARNING: This page is about a different car, the 2012 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Before carrying out the following test, diagnose any HVAC or PCM DTCs.
  1. I1 CHECK THE BLOWER MOTOR OPERATION 
    • Ignition ON.
    • Select PANEL mode.
    • Observe blower motor operation and select each blower motor speed.
    • Does the blower motor operate in all selections and change speed in each? 
      • Yes  : GO to I2.
      • No  : For Electronic Manual Temperature Control (EMTC), if the blower motor does not operate in any setting, GO to PINPOINT TEST W .

        For Dual Automatic Temperature Control (DATC), if the blower motor does not operate in any setting, GO to PINPOINT TEST Y .

        For EMTC, if the blower motor does not properly change speeds or shut OFF, GO to PINPOINT TEST X .

        For DATC, if the blower motor does not properly change speeds or shut OFF, GO to PINPOINT TEST Z .

  2. I2 CHECK AIRFLOW OPERATION 
    • Select the highest blower motor setting.
      • NOTE: Refer to DESCRIPTION AND OPERATION  for proper airflow descriptions.
    • While observing the airflow, select each of the airflow positions (PANEL, PANEL/FLOOR, FLOOR, FLOOR/DEFROST, DEFROST).
    • Is the airflow directed to the proper outlets? 
  3. I3 VERIFY TEMPERATURE CONTROL OPERATION 
    • Start the vehicle and allow it to reach normal operating temperature.
    • With the A/C OFF, select PANEL mode.
    • Change the temperature setting from the coldest to the warmest and back to the coldest.
    • Does the temperature change between very warm to cool? 
      • Yes  : GO to I4.
      • No  : If the temperature does not get very warm, GO to PINPOINT TEST N .

        For EMTC, if the temperature does not change at all, GO to PINPOINT TEST R .

        For DATC, without navigation, if the LH temperature does not change at all, GO to PINPOINT TEST S .

        For DATC, without navigation, if the RH temperature does not change at all, GO to PINPOINT TEST T .

        For DATC, with navigation, if the LH temperature does not change at all, GO to PINPOINT TEST U .

        For DATC, with navigation, if the RH temperature does not change at all, GO to PINPOINT TEST V .

  4. I4 VERIFY THE A/C CLUTCH DOES NOT ENGAGE WITH A/C OFF 
    • With the engine running and the A/C off, select PANEL mode.
    • Select the coldest temperature setting.
    • Is the outlet temperature close to ambient temperature? 
      • Yes  : GO to I5.
      • No  : For EMTC, if the temperature is warmer than ambient temperature, GO to PINPOINT TEST R  and diagnose for inoperative blend door.

        For DATC, without navigation, if the LH temperature is warmer than ambient temperature, GO to PINPOINT TEST S  and diagnose for an inoperative blend door.

        For DATC, without navigation, if the RH temperature is warmer than ambient temperature, GO to PINPOINT TEST T  and diagnose for an inoperative blend door.

        For DATC, with navigation, if the LH temperature is warmer than ambient temperature, GO to PINPOINT TEST U  and diagnose for an inoperative blend door.

        For DATC, with navigation, if the RH temperature is warmer than ambient temperature, GO to PINPOINT TEST V  and diagnose for an inoperative blend door.

        If the outlet temperature is significantly colder than ambient temperature and the A/C compressor clutch cycles normally, GO to PINPOINT TEST Q .

        If the outlet temperature is significantly colder than ambient temperature and the A/C compressor clutch does not cycle, GO to PINPOINT TEST P .

  5. I5 VERIFY A/C CLUTCH ENGAGEMENT IN THE A/C MODE 
    • Make sure the ambient air temperature is above 2°C (35°F).
    • With the engine running, select PANEL mode.
    • Press the A/C button (indicator ON).
    • Does the A/C clutch engage when the PANEL and A/C button (indicator ON) is pressed? 
  6. I6 CHECK THE RECIRC OPERATION 
    • Press the RECIRC button (indicator OFF).
    • Select PANEL mode.
    • Select the highest blower motor setting.
    • Observe airflow noise.
    • Press the RECIRC button (indicator ON).
    • Does the airflow noise increase when the RECIRC mode is selected (indicator ON)? 
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