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Home >> Ford >> 2014 >> Fusion Energi Titanium >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Pinpoint Tests (Hybrid) >> Pinpoint Test A: Engine No Start >> Test Procedure
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Test Procedure

  1. A1 ATTEMPT TO CRANK THE ENGINE 
    • Crank the engine using the engine cranking diagnostic mode. Refer to DIAGNOSTIC MODES .

    Does the engine crank? 

    Yes No
    GO to A2  . REFER to the Engine System - General Information article, to DIAGNOSE the difficult starting condition.
  2. A2 IDENTIFY THE TYPE OF NO START 
    NOTE: The purpose of this test step is to identify intermittent no starts in order to determine the correct repair procedure.
    • Start the engine using the engine running diagnostic mode. Refer to DIAGNOSTIC MODES .

    Does the vehicle start? 

    Yes No
    Vehicle is an intermittent no start.
    GO to PINPOINT TEST Z .    		 GO to A3  .
  3. A3 CHECK THE VREF VOLTAGE TO THE THROTTLE POSITION (TP) SENSOR 
    • Ignition OFF.
    • ETB connector disconnected.
    • Ignition ON, engine OFF.
    • Measure the voltage between:
      (+) ETB Connector, Harness Side (-) ETB Connector, Harness Side
      ETCREF - Pin 5 ETCRTN - Pin 4

    Is the voltage between 4.5 - 5.5 V? 

    Yes No
    GO to A4  . GO to PINPOINT TEST C .
  4. A4 MONITOR THE RPM PID 
    NOTE: Connect the scan tool to a reliable voltage source that is powered with the ignition in the START position (such as directly to the vehicle battery). Also, verify the vehicle battery is fully charged.
    • Access the PCM and monitor the RPM (RPM) PID.
    • Crank the engine using the engine cranking diagnostic mode. Refer to DIAGNOSTIC MODES .
    • Monitor the RPM PID while cranking the engine.

    Is the RPM between 900 - 1, 200 RPM? 

    Yes No
    GO to A5  . For base engine concerns, REFER to the Engine System article, and DIAGNOSE the difficult starting symptom.
    For an RPM reading of 0, GO to PINPOINT TEST JD .
  5. A5 CHECK FOR CRANKSHAFT POSITION (CKP) AND CAMSHAFT POSITION (CMP) SYNCHRONIZATION 
    • Access the PCM and monitor the SYNC (MODE) PID.
    • Crank the engine while viewing the SYNC PID.

    Does the SYNC PID read YES? 

    Yes No
    GO to A6  . GO to PINPOINT TEST JD .
  6. A6 CHECK FOR SPARK AT THE CYLINDERS 
    • Ignition OFF.
    • Remove the fuel pump fuse to disable the fuel pump.
    • Disconnect the ignition coils from the spark plugs on 2 of the cylinders on the engine.
    • Connect the Adjustable Ignition Spark Tester THX458 or equivalent to a spark plug boot.
    • Observe the spark tester while cranking the engine using the engine cranking diagnostic mode. Refer to DIAGNOSTIC MODES .
    • Repeat the test for 2 additional cylinders on the engine.

    Is a bluish-white spark present for each tested cylinder? 

    Yes No
    GO to A7  . GO to PINPOINT TEST JF .
  7. A7 CHECK THE FUEL PRESSURE 
    WARNING: WHEN HANDLING FUEL, ALWAYS OBSERVE FUEL HANDLING PRECAUTIONS AND BE PREPARED IN THE EVENT OF FUEL SPILLAGE. SPILLED FUEL MAY BE IGNITED BY HOT VEHICLE COMPONENTS OR OTHER IGNITION SOURCES. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY.
    • Refer to the fuel system WARNING information at the beginning of PINPOINT TEST HC .
    • Ignition OFF.
    • Relieve the fuel pressure. Refer to the Fuel System article, for the Fuel System Pressure Release procedure.
    • Connect the fuel pressure gauge using the appropriate fuel pressure test hose and adaptor.
    • Ignition ON, engine OFF.
    • Access the PCM and control the FP (MODE) PID.
    • Activate the fuel pump to obtain maximum fuel pressure.

    Is the fuel pressure within specification (refer to the  fuel pressure chart   in Pinpoint Test HC)? 

    Yes No
    GO to A8  . GO to PINPOINT TEST HC .
  8. A8 CHECK THE FUEL PRESSURE LEAKDOWN 
    WARNING: WHEN HANDLING FUEL, ALWAYS OBSERVE FUEL HANDLING PRECAUTIONS AND BE PREPARED IN THE EVENT OF FUEL SPILLAGE. SPILLED FUEL MAY BE IGNITED BY HOT VEHICLE COMPONENTS OR OTHER IGNITION SOURCES. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY.
    • Refer to the fuel system WARNING information at the beginning of PINPOINT TEST HC .
    • Ignition ON, engine OFF.
    • Access the PCM and control the FP (MODE) PID.
    • Activate the fuel pump to obtain maximum fuel pressure.
    • Verify the fuel pressure remains within 34 kPa (5 psi) of the maximum pressure for 1 minute after turning the pump off.

    Does the fuel pressure remain within 34 kPa (5 psi)? 

    Yes No
    GO to A9  . GO to PINPOINT TEST HC .
  9. A9 CHECK THE VPWR CIRCUIT FOR VOLTAGE AT THE FUEL INJECTORS 
    NOTE: Check at least two fuel injectors. A no start condition can exist only if greater than half of the fuel injectors are without VPWR.
    • Ignition OFF.
    • Disconnect 2 fuel injector connectors.
    • Ignition ON, engine OFF.
    • Measure the voltage between the fuel injector connector, harness side, VPWR circuit and ground at both fuel injector connectors.

    Are the voltages greater than 10.5 volts? 

    Yes No
    GO to A10  . REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test.
  10. A10 CHECK THE ABILITY OF THE FUEL INJECTORS TO DELIVER FUEL 
    WARNING: WHEN HANDLING FUEL, ALWAYS OBSERVE FUEL HANDLING PRECAUTIONS AND BE PREPARED IN THE EVENT OF FUEL SPILLAGE. SPILLED FUEL MAY BE IGNITED BY HOT VEHICLE COMPONENTS OR OTHER IGNITION SOURCES. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY.
    • Refer to the fuel system WARNING information at the beginning of PINPOINT TEST HC .
    • Cycle the ignition several times to activate the fuel system.
    • Remove the fuel pump fuse to disable the fuel pump.
    • Monitor the fuel pressure gauge while cranking the engine for at least 5 seconds.

    Is there a pressure drop greater than 34 kPa (5 psi) while cranking the engine? 

    Yes No
    The electronic engine control system is not the cause of the no start.
    RETURN to ENGINE CONTROLS - SYMPTOM CHARTS (HYBRID) for further direction.    		 GO to A11  .
  11. A11 CHECK FOR CORRECT PCM OPERATION 
    • Disconnect all the PCM connectors.
    • Visually inspect for:
      • pushed out pins
      • corrosion
    • Connect all the PCM connectors and make sure they seat correctly.
    • Carry out the PCM self-test.
    • Verify the concern is still present.

    Is the concern still present? 

    Yes No
    INSTALL a new PCM.
    REFER to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) , Programming the VID Block for a Replacement PCM.    		 The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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