LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2015 >> Explorer Limited, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - DATC >> Diagnosis And Testing >> Climate Control System >> Pinpoint Tests >> PINPOINT TEST Q : The Temperature Control Is Inoperative or Does Not Operate Correctly - RH >> PINPOINT TEST Q : The Temperature Control Is Inoperative or Does Not Operate Correctly - RH

PINPOINT TEST Q : The Temperature Control Is Inoperative or Does Not Operate Correctly - RH

NOTE: The RH temperature blend door actuator connector in the pinpoint test is difficult to access. Before disconnecting the RH temperature blend door actuator, visually inspect the actuator and its harness for obvious damage. If no damage is evident, proceed with the test.

  1. Q1 CHECK THE HVAC MODULE FOR DTCs

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

    Are any DTCs present? 

    Yes  For DTC B1082:11, GO to  Q3. For DTC B1082:12, GO to  Q4. For DTC B1082:13, GO to  Q5. For DTC B11E6:11, GO to  Q7. For DTC B11E6:15, GO to  Q9.
    No  GO to  Q2.

  2. Q2 CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR OPERATION USING ACTIVE COMMANDS

    • Start the engine.
    • Run the engine until it reaches normal operating temperature.
    • Using a diagnostic scan tool, view HVAC module PIDs.
    • Select PANEL mode on the HVAC controls.
    • Select the highest blower motor setting.
    • Monitor airflow while using the scan tool to operate the HVAC module active command RIGHT_BLEND, increasing and decreasing the percentage value.

    Does the airflow temperature change between warm and cold when the active command is changed? 

    Yes  INSTALL a new FCIM. For Premium, REFER to Information and Entertainment Systems - Premium . For Premium Plus, REFER to Information and Entertainment Systems - Premium Plus . For Sony® Sound, REFER to Information and Entertainment Systems - Sony® Sound .
    No  INSPECT for broken linkage or door. REPAIR as necessary. If no condition is found, GO to  Q14.

  3. Q3 CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.
    • Disconnect: HVAC Module C228B.
    • Disconnect: RH Temperature Blend Door Actuator.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228B-13
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground
      C228B-12
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  Q6.
    No  REPAIR the circuit in question.

  4. Q4 CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TO VOLTAGE

    • Ignition OFF.
    • Disconnect: RH Temperature Blend Door Actuator.
    • Disconnect: HVAC Module C228A.
    • Disconnect: HVAC Module C228B.
    • Ignition ON.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228B-13
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground
      C228B-12
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit in question.
    No  GO to  Q6.

  5. Q5 CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR AN OPEN

    • Ignition OFF.
    • Disconnect: HVAC Module C228B.
    • Disconnect: RH Temperature Blend Door Actuator.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228B-13
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2092-5
      C228B-12
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2092-6

    Are the resistances less than 3 ohms? 

    Yes  GO to  Q14.
    No  REPAIR the circuit in question.

  6. Q6 CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR MOTOR CIRCUITS FOR A SHORT TOGETHER

    • Ignition OFF.
    • Disconnect: RH Temperature Blend Door Actuator.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228B-12
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C228B-13

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  Q14.
    No  REPAIR the circuits.

  7. Q7 CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT FOR A SHORT TO GROUND

    • Ignition OFF.
    • Disconnect: RH Temperature Blend Door Actuator.
    • Disconnect: HVAC Module C228A.
    • Disconnect: HVAC Module C228B.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228B-4
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  Q8.
    No  REPAIR the circuit.

  8. Q8 CHECK THE SIGNAL RETURN CIRCUIT FOR A SHORT TO THE RH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228A-23
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C228B-4

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  Q14.
    No  REPAIR the circuits.

  9. Q9 CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT FOR A SHORT TO VOLTAGE

    • Ignition OFF.
    • Disconnect: HVAC Module C228A.
    • Disconnect: HVAC Module C228B.
    • Disconnect: RH Temperature Blend Door Actuator.
    • Ignition ON.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228B-4
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  GO to  Q10.

  10. Q10 CHECK THE REFERENCE VOLTAGE CIRCUIT FOR AN OPEN

    • Ignition OFF.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228A-24
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2092-1

    Is the resistance less than 3 ohms? 

    Yes  GO to  Q11.
    No  REPAIR the circuit.

  11. Q11 CHECK THE REFERENCE VOLTAGE CIRCUIT FOR A SHORT TO THE RH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT

    • Ignition OFF.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228A-24
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C228B-4

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  Q12.
    No  REPAIR the circuits.

  12. Q12 CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR FEEDBACK CIRCUIT FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228B-4
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2092-2

    Is the resistance less than 3 ohms? 

    Yes  GO to  Q13.
    No  REPAIR the circuit.

  13. Q13 CHECK THE RH TEMPERATURE BLEND DOOR ACTUATOR RETURN SIGNAL RETURN CIRCUIT FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C228A-23
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2092-3

    Is the resistance less than 3 ohms? 

    Yes  GO to  Q14.
    No  REPAIR the circuit.

  14. Q14 CHECK FOR CORRECT RH TEMPERATURE BLEND DOOR ACTUATOR OPERATION

    • Disconnect and inspect the RH temperature blend door actuator connector.
    • Repair:
      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary
    • Reconnect the RH temperature blend door actuator connector. Make sure it seats and latches correctly.
    • Reconnect the HVAC module connectors. Make sure they seat and latch correctly.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  INSTALL a new RH Temperature Blend Door Actuator, Refer to Temperature Blend Door Actuator - RH . TEST the system for normal operation. If the concern is still present, GO to  Q15.
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

  15. Q15 MODULE ACTUATOR POSITION CALIBRATION

    • Ignition OFF.
    • Disconnect and inspect all HVAC module connectors.
    • Repair:
      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary
    • Reconnect the HVAC module connectors. Make sure they seat and latch correctly.
    • Clear the DTCs.
    • Using a diagnostic scan tool, perform HVAC Module self-test.
    • Select any position except OFF
    • Operate the system and verify the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new HVAC module. REFER to Climate Control - EMTC .
    No  The system is now operating correctly at this time. The concern may have been caused by a foreign object in the HVAC case or temporary binding that restricted actuator door travel. CHECK any actuator external linkage. If condition recurs, INSPECT actuator linkage and door for binding and CHECK HVAC case for foreign objects.
scientia non olet · About LEMON Manuals