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Home >> Ford >> 2015 >> Focus ST >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - General Information (Except Electric Vehicle) >> Diagnosis And Testing >> Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) >> Pinpoint Test(s) >> Pinpoint Test D : Climate Control System Functional Test >> Pinpoint Test D : Climate Control System Functional Test

Pinpoint Test D : Climate Control System Functional Test

  1. D1 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)

    • Ignition ON.
    • Using a diagnostic scan tool, perform PCM self-test.

    Are any climate control related Diagnostic Trouble Codes (DTCs) present? 

    Yes  Refer to DTC Chart: Powertrain Control Module (PCM) .
    No  GO to  D2

  2. D2 CHECK THE BCM (BODY CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)

    • Ignition ON.
    • Using a diagnostic scan tool, perform BCM self-test.

    Are any climate control related Diagnostic Trouble Codes (DTCs) present? 

    Yes  Refer to DTC Chart: Body Control Module (BCM) .
    No  GO to  D3

  3. D3 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE FOR DIAGNOSTIC TROUBLE CODES (DTCS)

    • Ignition ON.
    • Using a diagnostic scan tool, perform HVAC control module self-test.

    Are any Diagnostic Trouble Codes (DTCs) present? 

    Yes  Refer to DTC Chart: Heating Ventilation Air Conditioning (HVAC) Module - Dual Automatic Temperature Control (DATC) .
    No  GO to  D4

  4. D4 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 ranges? 

    Yes  GO to  D5
    No  If the blower motor does not operate in any setting, GO to Pinpoint Test M  If the blower motor does not correctly change speeds or turn off when the system is turned off, GO to Pinpoint Test N 

  5. D5 CHECK AIRFLOW OPERATION

    • Select the highest blower motor setting.
    • While observing the airflow, select each of the airflow positions (panel, panel/floor, floor, floor/defrost, defrost).

    Is the airflow directed to the correct outlets? 

    Yes  GO to  D6
    No  GO to Pinpoint Test F 

  6. D6 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 driver and passenger temperature settings from the coldest to the warmest and back to the coldest.

    Does the temperature change between very warm to cool? 

    Yes  GO to  D7
    No  If the temperature does not get very warm, GO to Pinpoint Test G  If the driver side temperature does not change at all, GO to Pinpoint Test K  If the passenger side temperature does not change at all, GO to Pinpoint Test L 

  7. D7 VERIFY THE A/C (AIR CONDITIONING) CLUTCH DOES NOT ENGAGE WITH A/C (AIR CONDITIONING) 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  D8
    No  If the driver side temperature is warmer than ambient temperature, GO to Pinpoint Test K  If the passenger side temperature is warmer than ambient temperature, GO to Pinpoint Test L  If the outlet temperature is significantly colder than ambient temperature and PCM DTC P1464 is present, GO to Pinpoint Test J  If the outlet temperature is significantly colder than ambient temperature and PCM DTC P1464:00 is not present, GO to Pinpoint Test I 

  8. D8 VERIFY A/C (AIR CONDITIONING) CLUTCH ENGAGEMENT IN THE A/C (AIR CONDITIONING) MODE

    • Make sure the ambient air temperature is above 0 °C (32 °F).
    • With the engine running, select panel mode.
    • Press the A/C button (indicator on).

    Does the A/C clutch engage when the register and A/C button (indicator on) is pressed? 

    Yes  GO to  D9
    No  GO to Pinpoint Test H 

  9. D9 CHECK THE RECIRCULATED AIR OPERATION

    • With the engine running, press the recirculated air button (indicator off).
    • Select panel mode.
    • Select the highest blower motor setting.
    • Observe airflow noise.
    • Press the recirculated air button (indicator on).

    Does the airflow noise increase when the recirculated air mode is selected (indicator on)? 

    Yes  If the vehicle is not equipped with Sony sound, the system is operating normally. If the vehicle is equipped with Sony sound, GO to  D10
    No  GO to Pinpoint Test E 

  10. D10 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE LEFT DISCHARGE FLOOR TEMPERATURE PID (PARAMETER IDENTIFICATION) (LDFTEMP)

    • Using a diagnostic scan tool, view the HVAC control module Parameter Identifications (PIDs).
    • Monitor the PID LDFTTEMP.

    Is the temperature coming out of the left footwell vent similar to the PID? 

    Yes  GO to  D11
    No  GO to Pinpoint Test O 

  11. D11 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE LEFT DISCHARGE PANEL TEMPERATURE PID (PARAMETER IDENTIFICATION) (LDPT)

    • Using a scan tool view the HVAC control module Parameter Identifications (PIDs).
    • Monitor the PID LDPT.

    Is the temperature coming out of the left panel register similar to the PID? 

    Yes  GO to  D12
    No  GO to Pinpoint Test O 

  12. D12 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE DISCHARGE AIR TEMPERATURE, RIGHT FLOOR PID (PARAMETER IDENTIFICATION) (AIRTEMP_RF)

    • Using a scan tool view the HVAC control module Parameter Identifications (PIDs).
    • Monitor the PID AIRTEMP_RF.

    Is the temperature coming out of the right footwell vent similar to the PID? 

    Yes  GO to  D10
    No  GO to Pinpoint Test O 

  13. D13 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE DISCHARGE AIR TEMPERATURE, RIGHT PANEL PID (PARAMETER IDENTIFICATION) (AIRTEMP_RP)

    • Using a scan tool view the HVAC control module Parameter Identifications (PIDs).
    • Monitor the PID AIRTEMP_RP.

    Is the temperature coming out of the right register vent similar to the PID? 

    Yes  GO to  D14
    No  GO to Pinpoint Test O 

  14. D14 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE INTERIOR TEMPERATURE SENSOR PID (PARAMETER IDENTIFICATION) (INT_TEMP)

    • Using a scan tool view the HVAC control module Parameter Identifications (PIDs).
    • Monitor the PID INT_TEMP.

    Is the air temperature at the cabin temperature sensor similar to the PID? 

    Yes  GO to  D15
    No  GO to Pinpoint Test P 

  15. D15 CHECK THE TOUCHSCREEN CONTROLS OPERATION

    • Using the touchscreen controls, select each climate control function.
    • Using the touchscreen controls, select each audio control function.

    Do all touchscreen controls operate? 

    Yes  The system is operating correctly.
    No  Refer to : Information and Entertainment System .
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