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Test Procedure

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
  1. QE1 CHECK FOR DTCS 
    NOTE: For DTC P061B, make sure the air cleaner and air inlet are correctly seated and properly installed before continuing diagnosis.
    • Are any DTCs present other than the following: P0600, P060A, P060B, P060C, P060D, P061B, P061C, P061D, P061F, P062C, P1674, P2104, P2105, P2110, or U0300? 
    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO toDIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS . For Focus with DTC P0600, GO to  QE2.
    For all others with DTC P0600, GO to  QE18.
    For DTCs P060A, P060C, P060D, P061D, P1674 or U0300, GO to  QE2.
    For DTC P060B, GO to  QE3.
    For DTC P061B, GO to  QE13.
    For DTC P061C, GO to  QE5.
    For DTC P061F, GO to  QE7.
    For DTCs P062C, P2104, P2105 or P2110, GO to  QE8.
  2. QE2 DTCS P060A, P060C, P060D, P061D, P1674 OR U0300: CHECK THE PCM FOR THE LATEST CALIBRATION 
    • Program the PCM to the latest calibration.
    • Key in OFF position.
    • Key ON, engine OFF.
    • Key in OFF position.
    • Key ON, engine running.
    • Use the customer information to recreate the concern.
    • Carry out the self-test.
    • Are DTCs P060A, P060C, P060D, P061D, P1674 or U0300 present? 
    Yes No
    GO to  QE18. The concern is not present at this time.
  3. QE3 DTC P060B: CHECK FOR REFERENCE VOLTAGE CONCERNS 
    • Inspect the PCM harness for damage.
    • Verify the correct operation of the sensors using ETCREF, VREF and related circuits. refer to PINPOINT TEST C and follow the pinpoint test direction.
    • Is a concern present? 
    Yes No
    REPAIR as necessary.
    CLEAR the DTCs. REPEAT the self-test.    		 GO to  QE4.
  4. QE4 CHECK FOR AN INTERMITTENT CONCERN 
    • Clear the DTCs.
    • Carry out the self-test.
    • Is DTC P060B present? 
    Yes No
    GO to  QE18. The concern is not present at this time.
  5. QE5 DTC P061C: CHECK THE CKP SENSOR FOR CORRECT OPERATION 
    • Verify correct operation of the CKP sensor and related circuits. refer to PINPOINT TEST JD and follow the pinpoint test direction.
    • Is a concern present? 
    Yes No
    REPAIR as necessary.
    CLEAR the DTCs. REPEAT the self-test.    		 GO to  QE6.
  6. QE6 CHECK THE CMP SENSOR FOR CORRECT OPERATION 
    • Verify correct operation of the CMP sensor and related circuits. refer to PINPOINT TEST DR and follow the pinpoint test direction.
    • Is a concern present? 
    Yes No
    REPAIR as necessary.
    CLEAR the DTCs. REPEAT the self-test.    		 GO to  QE7.
  7. QE7 DTC P061F: VERIFY THE CUSTOMER CONCERN 
    • Clear the DTCs.
    • Use the customer information to recreate the concern.
    • Carry out the self-test.
    • Are DTCs P061C or P061F present? 
    Yes No
    GO to  QE18. The concern is not present at this time.
  8. QE8 DTCS P062C, P2104, P2105 OR P2110: 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 applicable Workshop article part to diagnose the DTC. GO to  QE9.
  9. QE9 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. DIAGNOSE the next DTC. GO toDIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS .
    For communication concerns in other modules, REFER to the applicable Workshop article part to diagnose the communication DTC.    		 For DTC P062C, GO to  QE16.
    For DTC P2104, GO to  QE10.
    For DTC P2105, GO to  QE11.
    For DTC P2110, GO to  QE15.
  10. QE10 DTC P2104: CHECK FOR THE PRESENCE OF PCM DTCS  
    • Clear the PCM DTCs.
    • Check for self-test DTCs.
    • Are any DTCs present other than P2104? 
    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO toDIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS . refer to PINPOINT TEST DK .
  11. QE11 DTC P2105: CHECK FOR THE PRESENCE OF PCM DTCS  
    NOTE: P2105 may be set in combination with other DTCs. Diagnose other DTCs first.
    • Clear the PCM DTCs.
    • Check for self-test DTCs.
    • Are any DTCs present other than P2105? 
    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO toDIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS . GO to  QE12.
  12. QE12 CARRY OUT A VISUAL INSPECTION 
    • Key in OFF position.
    • Visually inspect the following for obvious signs of damage:
      • ETB
      • PCM
    • Check the harness for routing, alterations, incorrect shielding, or electrical interference from other systems. Make sure aftermarket wiring is not routed near the PCM.
    • Verify aftermarket equipment does not generate radio frequency interference/electromagnetic interference (RFI/EMI).
    • Is a concern present? 
    Yes No
    ISOLATE the concern and REPAIR as necessary.
    CLEAR the DTCs. REPEAT the self-test.    		 GO to  QE18.
  13. QE13 DTC P061B: CHECK FOR THE PRESENCE OF PCM DTCS  
    NOTE: An intermittent CKP sensor or harness concern may cause DTC P061B to set. Check for intermittent CKP sensor and harness concerns.
    • Clear the PCM DTCs.
    • Check for self-test DTCs.
    • Are any DTCs present other than P061B? 
    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO toDIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS . For Crown Victoria,
    E-Series 4.6L,
    Explorer 4.0L,
    Explorer Sport Trac 4.0L,
    F-150 4.2L,
    F-150 4.6L,
    F-Super Duty 6.8L,
    Grand Marquis,
    Mountaineer 4.0L,
    Mustang 4.0L,
    Mustang 5.4L, and
    Town Car, GO to  QE14.
    For all others, CHECK for an intermittent concern with an ETC related harness or sensor.
    refer to PINPOINT TEST Z .
  14. QE14 CHECK THE MAP INPUT 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
    For Crown Victoria,
    Grand Marquis,
    Explorer 4.0L,
    Explorer Sport Trac 4.0L,
    Mountaineer 4.0L, and
    Town Car, GO to  QE16.
    For all others, CHECK for an intermittent concern with an ETC related harness or sensor.
    refer to PINPOINT TEST Z .    		 INSTALL a new ESM.
    REFER to the ENGINE EMISSION CONTROL article.
    CLEAR the DTCs. REPEAT the self-test.
  15. QE15 DTC P2110: CHECK FOR THE PRESENCE OF PCM DTCS  
    NOTE: P2110 sets in combination with other DTCs.
    • Clear the PCM DTCs.
    • Check for self-test DTCs.
    • Are any DTCs present other than P2110? 
    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO toDIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS . GO to  QE18.
  16. QE16 CHECK FOR ABS AND WHEEL SPEED SENSOR CONCERNS 
    NOTE: Refer to the REFERENCE VALUES article Reference Values for the typical diagnostic reference values.
    • ESM connector connected.
    • Key ON, engine running.
    • Access the PCM and monitor the ISS_SRC, OSS_SRC and TSS PIDs.
    • Access the PCM and monitor the VSS PID.
    • Access the ABS and monitor the LF_WSPD, LR_WSPD, RF_WSPD and RR_WSPD PIDs.
    • 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
    For Explorer 4.0L,
    Explorer Sport Trac 4.0L,
    F-150 5.4L,
    Mark LT, and
    Mountaineer 4.0L, GO to  QE17.
    For all others, CHECK for an intermittent concern with an ETC related harness or sensor.
    refer to PINPOINT TEST Z .    		 REFER to the VEHICLE DYNAMIC SYSTEMS article.
  17. QE17 CHECK FOR A TRANSFER CASE MECHANICAL CONCERN 
    • Stop the vehicle.
    • Select 4WD Low.
    • Does the vehicle shift into 4WD Low? 
    Yes No
    CHECK for an intermittent concern with an ETC related harness or sensor.
    refer to PINPOINT TEST Z .    		 REFER to the AUTOMATIC TRANSAXLE/TRANSMISSION 4WD article.
  18. QE18 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 and verify the concern is still present.
    • Is the concern still present? 
    Yes No
    INSTALL a new PCM. REFER toFLASH 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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