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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2807 (Engine Controls - Pinpoint Tests - (Hybrid) - Pinpoint Tests HU - NC) >> Pinpoint Test JF: Integrated Ignition Coil On Plug Coil A Through D Failure >> Test Procedure

Test Procedure

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. JF1 CHECK FOR THE PRESENCE OF PCM DTCS P0351, P0352, P0353, AND P0354 TOGETHER 
    NOTE: DTCs P0351, P0352, P0353 and P0354 together indicate that all 4 ignition coils lost IGN START/RUN power while the PCM sustained VPWR.

    Possible causes: 

    • IGN START/RUN circuit open.
    • ISP-R shorted to PWR.

    Are PCM continuous DTCs P0351, P0352, P0353, and P0354 present together during the self-test? 

    Yes No
    GO to  JF2. GO to  JF3.
  2. JF2 CHECK THE IGNITION SWITCH RUN POSITION CIRCUIT FOR A SHORT TO VPWR IN THE HARNESS 
    • Check the condition of the IGN START/RUN circuit related fuses.
    • Key in OFF position.
    • PCM connector disconnected.
    • Measure the voltage between:
      ( + ) PCM Connector, Harness Side ( - ) Vehicle Battery
      ISP-R Negative terminal

    Is the voltage less than 1 V? 

    Yes No
    INSTALL a new PCM. REFER to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . CHECK for a damaged ignition switch.
    REFER to COMPONENT TESTING .
    If the ignition switch is OK, REPAIR the short to PWR circuit in the harness.
  3. JF3 DETERMINE WHICH COIL IS NOT FIRING PROPERLY 
    NOTE: Electronic ignition engine timing is entirely controlled by the PCM. Electronic ignition timing is NOT adjustable. Do not attempt to check base timing. You will receive false readings.
    • Determine which coil is not firing properly using the information from Pinpoint Test JB or a DTC and the table at the beginning of this pinpoint test.
    • Record the suspect cylinder, coil, and PCM pin number from the table.

    Have the suspect cylinder number, coil driver, and PCM pin number been recorded? 

    Yes No
    GO to  JF4. REPEAT the test step to obtain the required information.
  4. JF4 CHECK THE FUNCTIONALITY OF THE SUSPECT COIL DRIVER CIRCUIT 
    • Suspect coil connector disconnected.
    • PCM connector connected.
    • Connect a non-powered test lamp between the IGN START/RUN and suspect coil driver, harness side.
    • Crank the engine using the engine cranking diagnostic mode. Refer to DIAGNOSTIC MODES .
    • Observe the test lamp while cranking the engine.

    Is the test lamp blinking consistently? 

    Yes No
    Key in OFF position.
    GO to  JF5.    		 GO to  JF6.
  5. JF5 CHECK THE FUNCTIONALITY OF THE SUSPECT COIL 
    • Carry out a visual inspection. Closely inspect the coil case and boot for carbon tracking, cracks and torn or improperly installed boots.
    • Remove the suspect COP from the spark plug.
    • Connect air gap spark tester 303-D037 (D81P-6666-A) or equivalent to the suspect coil.
    • Suspect coil connector connected.
    • Crank the engine using the engine cranking diagnostic mode. Refer to DIAGNOSTIC MODES .
    • Observe the spark tester while cranking the engine.

    Is a bluish-white spark present? 

    Yes No
    Key in OFF position. Key in OFF position. INSTALL a new coil as necessary.
    GO to Pinpoint Test Z . INSPECT the spark plug, INSTALL a new spark plug as necessary.
  6. JF6 CHECK IGN START/RUN VOLTAGE TO SUSPECT COIL 
    • Measure the voltage between:
      ( + ) COP Connector, Harness Side ( - ) Vehicle Battery
      IGN START/RUN - Pin 2 Negative terminal

    Is the voltage greater than 10.5 V? 

    Yes No
    Key in OFF position.
    GO to  JF7.    		 Key in OFF position. REPAIR the open circuit.
  7. JF7 CHECK THE SUSPECT COIL DRIVER CIRCUIT FOR AN OPEN IN THE HARNESS 
    • PCM connector disconnected.
    • Measure the resistance between:
      ( + ) PCM Connector, Harness Side ( - ) COP Connector, Harness Side
      Suspect coil driver COP - Pin 1

    Is the resistance less than 5 ohms? 

    Yes No
    GO to  JF8. REPAIR the open circuit.
  8. JF8 CHECK THE SUSPECT COIL DRIVER CIRCUIT FOR A SHORT TO VPWR IN THE HARNESS 
    • Key ON, engine OFF.
    • Measure the voltage between:
      ( + ) PCM Connector, Harness Side ( - ) Vehicle Battery
      Suspect coil driver Negative terminal

    Is the voltage less than 1 V? 

    Yes No
    Key in OFF position.
    GO to  JF9.    		 Key in OFF position. REPAIR the short circuit to PWR.
  9. JF9 CHECK THE SUSPECT CD CIRCUIT FOR A SHORT TO GROUND IN THE HARNESS 
    • Measure the resistance between:
      ( + ) PCM Connector, Harness Side ( - ) Vehicle Battery
      Suspect coil driver Negative terminal

    Is the resistance greater than 10K ohms? 

    Yes No
    INSTALL a new PCM. REFER to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . GO to  JF10.
    If the concern or DTC is still present, If the concern or DTC is still present,
    REPAIR the short circuit to GND. GO to  JF10.
  10. JF10 CHECK THE SUSPECT COIL FOR DAMAGE 
    • Carry out a visual inspection. Closely inspect the coil case and boot for carbon tracking, cracks, and torn or improperly installed boots.
    • Remove the suspect COP from the spark plug.
    • Connect air gap spark tester 303-D037 (D81P-6666-A) or equivalent to the suspect coil.
    • Suspect coil connector connected.
    • Crank the engine using the engine cranking diagnostic mode. Refer to DIAGNOSTIC MODES .
    • Observe the spark tester while cranking the engine.

    Is a bluish-white spark present? 

    Yes No
    Key in OFF position. Key in OFF position. INSTALL a new COP.
    INSPECT the spark plug. INSTALL a new spark plug as necessary. INSPECT the spark plug. INSTALL a new spark plug as necessary.
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