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Home >> Ford >> 2017 >> Transit Connect XL, Van Cargo >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Pinpoint Test JF: Integrated Ignition Coil On Plug Coils A-J Failure Through Pinpoint Test Z: Intermittent - (Except Diesel & Hybrid) >> Pinpoint Test Kn: Variable Speed Electric Cooling Fan Motor >> Test Procedure

Test Procedure

  1. KN1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) 

    Is DTC P0480 present? 

    Yes No
    GO to  KN4. For symptoms without DTCs, GO to  KN2.
    For all others, RETURN to SYMPTOM CHARTS for further direction.
  2. KN2 VERIFY A/C STATUS 
    • Verify the A/C system is OFF.
    • Ignition ON, engine running.
    • Access the PCM and monitor the AC_REQ (MODE) PID.

    Is A/C being requested? 

    Yes No
    REFER to the Service Information, Climate Control System, to diagnose the A/C system. For electric cooling fan(s) always on, GO to  KN3.
    For all others, GO to  KN4.
  3. KN3 CHECK THE AIR CONDITIONING PRESSURE TRANSDUCER SENSOR 
    • Ignition OFF.
    • Air Conditioning Pressure (ACP) Transducer Sensor connector disconnected.
    • Ignition ON, engine running.

    Does the cooling fan turn off? 

    Yes No
    REFER to the Service Information, Climate Control System, to diagnose the Air Conditioning Pressure (ACP) Transducer Sensor. GO to  KN4.
  4. KN4 COMMAND THE COOLING FAN ON TO CHECK OPERATION 
    NOTE: Some vehicles have more than one cooling fan. Make sure both cooling fans operate correctly.
    • Ignition ON, engine OFF.
    • Access the PCM and control the FAN_DSD (PER) PID.
    • Command the fan to full ON.

    Does the cooling fan operate when commanded ON? 

    Yes No
    The concern is elsewhere. RETURN to NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX for further direction. GO to  KN5.
  5. KN5 CHECK THE VOLTAGE TO THE COOLING FAN 
    • Ignition OFF.
    • For Edge, F-150, and MKX,
    • Cooling Fan Motor 1 connector disconnected.
    • Cooling Fan Motor 2 connector disconnected.
    • Measure the voltage between:
    (+) Cooling Fan Motor 1 Connector, Harness Side (-)
    FANPWR Ground
    • Measure the voltage between:
    (+) Cooling Fan Motor 2 Connector, Harness Side (-)
    FANPWR Ground
    • For Continental and Ford GT,
    • CF Module connector disconnected.
    • CF2 Module connector disconnected.
    • Ignition ON, engine OFF.
    • Measure the voltage between:
    (+) CF Module Connector, Harness Side (-)
    FANPWR - Pin 1 Ground
    • Measure the voltage between:
    (+) CF2 Module Connector, Harness Side (-)
    FANPWR - Pin 1 Ground
    • For all others,
    • CF Module connector disconnected.
    • Ignition ON, engine OFF.
    • Measure the voltage between:
    (+) CF Module Connector, Harness Side (-)
    FANPWR - Pin 1 Ground

    Is the voltage greater than 10.5 V? 

    Yes No
    GO to  KN9. GO to  KN6.
  6. KN6 CHECK FOR VOLTAGE TO THE RELAY 
    • Ignition OFF.
    • For Edge, F-150, and MKX,
    • FC1 Relay connector disconnected.
    • FC3 Relay connector disconnected.
    • Ignition ON, engine OFF.
    • Measure the voltage between:
    (+) FC1 Relay Connector, Harness Side (-)
    B+ Ground
    VPWR Ground
    • Measure the voltage between:
    (+) FC3 Relay Connector, Harness Side (-)
    B+ Ground
    VPWR Ground
    • For Continental and Ford GT,
    • FC1 Relay connector disconnected.
    • FC2 Relay connector disconnected.
    • Ignition ON, engine OFF.
    • Measure the voltage between:
    (+) FC1 Relay Connector, Harness Side (-)
    B+ Ground
    • Measure the voltage between:
    (+) FC2 Relay Connector, Harness Side (-)
    B+ Ground
    • For all others,
    • FC Relay connector disconnected.
    • Ignition ON, engine OFF.
    • Measure the voltage between:
    (+) FC Relay Connector, Harness Side (-)
    B+ Ground
    VPWR Ground

    Are the voltages greater than 10.5 V? 

    Yes No
    GO to  KN7. REPAIR the open circuit. Clear the PCM DTCs.
    REPEAT the self-test.
  7. KN7 CHECK THE RELAY 
    • Carry out the Relay Component Test. Refer to Wiring Diagrams Component Testing.

    Is a concern present? 

    Yes No
    INSTALL a new FC relay in question.
    Clear the PCM DTCs. REPEAT the self-test.    		 GO to  KN8.
  8. KN8 CHECK THE RELAY GROUND 
    • Ignition OFF.
    • For Edge, F-150, and MKX,
    • Measure the resistance between:
    (+) FC1 Relay Connector, Harness Side (-)
    GND Ground
    • Measure the resistance between:
    (+) FC3 Relay Connector, Harness Side (-)
    GND Ground
    • For Continental and Ford GT,
    • Measure the resistance between:
    (+) FC1 Relay Connector, Harness Side (-)
    GND Ground
    • Measure the resistance between:
    (+) FC2 Relay Connector, Harness Side (-)
    GND Ground
    • For all others,
    • Measure the resistance between:
    (+) FC Relay Connector, Harness Side (-)
    GND Ground

    Is the resistance less than 5 ohms? 

    Yes No
    GO to  KN9. REPAIR the open circuit. Clear the PCM DTCs.
    REPEAT the self-test.
  9. KN9 CHECK FOR AN OPEN CIRCUIT 
    • Ignition OFF.
    • PCM connector disconnected.
    • For Edge, F-150, and MKX,
    • Measure the resistance between:
    (+) Cooling Fan Motor 1 Connector, Harness Side (-)
    GND Ground
    • Measure the resistance between:
    (+) Cooling Fan Motor 1 Connector, Harness Side (-) PCM Connector, Harness Side
    FCV FCV
    • Measure the resistance between:
    (+) Cooling Fan Motor 1 Connector, Harness Side (-) FC3 Relay Connector, Harness Side
    FANPWR FANPWR
    • Measure the resistance between:
    (+) Cooling Fan Motor 2 Connector, Harness Side (-)
    GND Ground
    • Measure the resistance between:
    (+) Cooling Fan Motor 2 Connector, Harness Side (-) PCM Connector, Harness Side
    FCV FCV
    • Measure the resistance between:
    (+) Cooling Fan Motor 2 Connector, Harness Side (-) FC1 Relay Connector, Harness Side
    FANPWR FANPWR
    • For Escape and Focus,
    • Measure the resistance between:
    (+) CF Module Connector, Harness Side (-)
    GND - Pin 2 Ground
    • Measure the resistance between:
    (+) CF Module Connector, Harness Side (-) PCM Connector, Harness Side
    FCV - Pin 4 FCV
    • Measure the resistance between:
    (+) FC Relay Connector, Harness Side (-) CF Module Connector, Harness Side
    FANPWR FANPWR - Pin 1
    • For Continental and Ford GT,
    • Measure the resistance between:
    (+) CF Module Connector, Harness Side (-)
    GND - Pin 2 Ground
    • Measure the resistance between:
    (+) CF Module Connector, Harness Side (-) PCM Connector, Harness Side
    FCV - Pin 4 FCV
    • Measure the resistance between:
    (+) CF2 Module Connector, Harness Side (-)
    GND - Pin 2 Ground
    • Measure the resistance between:
    (+) CF2 Module Connector, Harness Side (-) PCM Connector, Harness Side
    FCV - Pin 4 FCV
    • For all others,
    • Measure the resistance between:
    (+) CF Module Connector, Harness Side (-)
    GND - Pin 2 Ground
    • Measure the resistance between:
    (+) CF Module Connector, Harness Side (-) PCM Connector, Harness Side
    FCV - Pin 4 FCV

    Are the resistances less than 5 ohms? 

    Yes No
    GO to  KN10. REPAIR the open circuit. Clear the PCM DTCs.
    REPEAT the self-test.
  10. KN10 CHECK THE FCV CIRCUIT FOR A SHORT TO GROUND 
    • For Edge, F-150, and MKX,
    • Measure the resistance between:
    (+) Cooling Fan Motor 1 Connector, Harness Side (-)
    FCV Ground
    • Measure the resistance between:
    (+) Cooling Fan Motor 2 Connector, Harness Side (-)
    FCV Ground
    • For Continental and Ford GT,
    • Measure the resistance between:
    (+) CF Module Connector, Harness Side (-)
    FCV - Pin 4 Ground
    • Measure the resistance between:
    (+) CF2 Module Connector, Harness Side (-)
    FCV - Pin 4 Ground
    • For all others,
    • Measure the resistance between:
    (+) CF Module Connector, Harness Side (-)
    FCV - Pin 4 Ground

    Are the resistances greater than 10k ohms? 

    Yes No
    GO to  KN11. REPAIR the short circuit. Clear the PCM DTCs.
    REPEAT the self-test.
  11. KN11 CHECK THE FCV CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition ON, engine OFF.
    • For Edge, F-150, and MKX,
    • Measure the voltage between:
    (+) Cooling Fan Motor 1 Connector, Harness Side (-)
    FCV Ground
    • Measure the voltage between:
    (+) Cooling Fan Motor 2 Connector, Harness Side (-)
    FCV Ground
    • For Continental and Ford GT,
    • Measure the voltage between:
    (+) CF Module Connector, Harness Side (-)
    FCV - Pin 4 Ground
    • Measure the voltage between:
    (+) CF2 Module Connector, Harness Side (-)
    FCV - Pin 4 Ground
    • For all others,
    • Measure the voltage between:
    (+) CF Module Connector, Harness Side (-)
    FCV - Pin 4 Ground

    Is any voltage present? 

    Yes No
    REPAIR the short circuit. Clear the PCM DTCs.
    REPEAT the self-test.    		 GO to  KN12.
  12. KN12 CHECK THE FCV CIRCUITS FOR INTERMITTENT CONCERNS 
    NOTE: Some vehicles have more than one cooling fan. Make sure both cooling fans operate correctly.
    NOTE: Not all vehicles have all components listed.
    • Ignition OFF.
    • CF Motor connector disconnected.
    • Cooling Fan Motor 1 connector disconnected.
    • Cooling Fan Motor 2 connector disconnected.
    • Visually inspect all connectors for:
      • pushed out pins
      • corrosion
    • CF Motor connector connected.
    • CF Module connector connected.
    • CF2 Module connector connected.
    • Cooling Fan Motor 1 connector connected.
    • Cooling Fan Motor 2 connector connected.
    • PCM connector connected.
    • FC Relay connector connected.
    • FC1 Relay connector connected.
    • FC2 Relay connector connected.
    • FC3 Relay connector connected.
    • Ignition ON, engine OFF.
    • Access the PCM and control the FAN_DSD (PER) PID.
    • Command the fan to full ON.
    • While observing the fan, wiggle, shake, and bend small sections of the wiring harness while working from the cooling fan to the PCM.

    Is a concern present? 

    Yes No
    REPAIR as necessary. If a wiring concern is not present, INSTALL a new cooling fan. REFER to the Service Information, Engine Cooling.
    Clear the PCM DTCs. REPEAT the self-test.    		 The system is operating correctly at this time.
    The concern may have been caused by a loose or corroded connector.
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