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HOMESERVICE MANUALSFORD2004FOCUS ZX3, 2.0 3, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TEST QB: DTCS P0603 OR P1633: KEEP ALIVE POWER THROUGH PINPOINT TEST Z: INTERMITTENT - CNG, FLEX-FUEL & GASOLINEPINPOINT TEST QE: ELECTRONIC THROTTLE CONTROL (ETC) SYSTEMTEST PROCEDURE
2004 Ford Focus ZX3, 2.0 3, Standard

Test Procedure

2004 Ford Focus ZX3, 2.0 3, StandardSECTION Test Procedure
  1. QE1 DTCS P2104, P2105, P2106 OR P2110: CHECK FOR THE PRESENCE OF ANY DTCS OTHER THAN THE INFORMATIONAL DTCS 

    Are any DTCs present other than the following: P2104, P2105, P2106, or P2110? 

    Yes No
    GO to  QE2. GO to  QE4.
  2. QE2 CHECK FOR THE PRESENCE OF PROCESSOR PERFORMANCE DTCS 
    • Check for self-test DTCs.

    Are DTCs P0600, P0606, P1674, or U0300 present? 

    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. ADDRESS the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS . GO to  QE3.
  3. QE3 CHECK FOR THE PRESENCE OF ANY ETB CONCERNS 
    • Check for self-test DTCs.

    Are DTCs P2072 or P2100 present? 

    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. ADDRESS the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS . Address the remaining DTCs in the following order: KOEO, KOER, and Continuous
    DISREGARD the current diagnostic trouble code (DTC) at this time. ADDRESS the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS .
  4. QE4 CHECK FOR DTCS IN OTHER VEHICLE MODULES 
    • Check for self-test DTCs in all of the vehicle modules.

    Are any DTCs present? 

    Yes No
    REFER to the appropriate service intormation article to diagnose the DTC. GO to  QE5.
  5. QE5 CHECK FOR THE PRESENCE OF ANY MODULE COMMUNICATION CONCERNS 
    • Check for self-test DTCs in all of the vehicle modules.

    Are any communication concerns or communication DTCs present? 

    Yes No
    For communication concerns in the PCM:
    DISREGARD the current diagnostic trouble code (DTC) at this time. ADDRESS the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS
    For communication concerns in other modules:
    REFER to the appropriate service information article to diagnose the communication DTC.    		 For DTC P2104, GO to  QE6
    For DTC P2105, GO to  QE7
    For DTC P2106, GO to  QE9
    For DTC P2110, GO to  QE11.
  6. QE6 DTC P2104: CHECK FOR THE PRESENCE OF PCM DTCS 
    NOTE: P2104 will be set in combination with other DTCs.
    • Clear the PCM DTCs.
    • Check for self-test DTCs.

    Are any DTCs present other than the following: P2104? 

    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. ADDRESS the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS . INSTALL a new PCM. REFER to FLASH ELECTRICALLY ERASEABLE PROGRAMMABLE READ ONLY MEMORY - FLASH EEPROM .
  7. QE7 DTC P2105: CHECK FOR THE PRESENCE OF PCM DTCS 
    NOTE: P2105 will be set in combination with other DTCs.
    • Clear the PCM DTCs.
    • Check for self-test DTCs.

    Are any DTCs present other than the following: P2105? 

    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. ADDRESS the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS . GO to  QE8.
  8. QE8 CARRY OUT A VISUAL INSPECTION 
    • Key in OFF position.
    • Visually inspect the following for obvious signs of damage:
      • ETBTACM.
      • PCM.

    Are any concerns present? 

    Yes No
    ISOLATE the fault and REPAIR as necessary. INSTALL a new PCM. REFER to FLASH ELECTRICALLY ERASEABLE PROGRAMMABLE READ ONLY MEMORY - FLASH EEPROM .
  9. QE9 DTC P2106: CHECK FOR THE PRESENCE OF PCM DTCS 
    • Clear the PCM DTCs.
    • Check for self-test DTCs.

    Are any DTCs present other than the following: P2106? 

    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. ADDRESS the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS . For Vehicles with an EGR System Module (ESM) GO to  QE10
    For All Others
    GO to  QE12.
  10. QE10 CHECK THE MAP SENSOR FOR AN OFFSET SIGNAL 
    • Key in OFF position.
    • Allow the vehicle to cool down.
    • ESM connector disconnected.
    • Measure the resistance between:
    ( + ) ESM Connector, Component Side ( - ) ESM Connector, Component Side
    VREF - Pin 2 SIGRTN - Pin 6

    Is the resistance greater than 2K ohms? 

    Yes No
    GO to  QE12. INSTALL a new ESM.
  11. QE11 DTC P2110: CHECK FOR THE PRESENCE OF PCM DTCS 
    NOTE: P2110 will be set in combination with other DTCs.
    • Clear the PCM DTCs.
    • Check for self-test DTCs.

    Are any DTCs present other than the following: P2110? 

    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. ADDRESS the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS . INSTALL a new PCM. REFER to FLASH ELECTRICALLY ERASEABLE PROGRAMMABLE READ ONLY MEMORY - FLASH EEPROM .
  12. QE12 CHECK FOR ABS AND WHEEL SPEED SENSOR CONCERNS 
    NOTE: Refer to REFERENCE VALUES - CNG, FLEX-FUEL & GASOLINE for the typical diagnostic reference values.
    • ESM connector connected.
    • Key on engine running.
    • Access the PCM and monitor the OSS, TSS/ISS and VSS PIDs.
    • Access the ABS and monitor the LF_WSPD, LR_WSPD, RF_WSPD and RR_WSPD PIDs.
    • l Road test the vehicle under various load conditions while comparing the PIDs. Check for signals that are intermittent or do not correspond.

    Do the PID values correspond with the vehicle operating conditions? 

    Yes No
    CHECK for an intermittent concern with an ETC related harness or sensor
    GO to Pinpoint Test Z.    		 REFER to the appropriate ANTI-LOCK CONTROL article to diagnose any ABS concerns.
RENDER: 1.0x

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