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Home >> Ford >> 2012 >> Fusion Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Pinpoint Tests (Hybrid) >> Pinpoint Tests DP: Powertrain Control Module (PCM) Vehicle Speed >> Test Procedure
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Test Procedure

  1. DP1 CHECK FOR TCM AND PCM DTCS 
    • Carry out the TCM self-test.
    • Carry out the PCM self-test.

    Are any TCM or PCM DTCs present? 

    Yes No
    For DTC P0C2F, GO to  DP2.
    For all others, DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS .    		 GO to  DP2.
  2. DP2 CHECK FOR CORRECT TIRE SIZE AND INFLATION 
    • Verify the correct tire size and inflation.

    Are the tire size and inflation OK? 

    Yes No
    GO to  DP3. REPAIR as necessary.
    Clear the PCM DTCs. REPEAT the self-test.
  3. DP3 CHECK FOR ABS DTCS 
    • Check the ABS module for wheel speed sensor DTCs.

    Are any ABS DTC present? 

    Yes No
    REFER to the appropriate Anti-Lock Brake System (ABS) and Stability Control article, to diagnose the wheel speed sensor DTCs. GO to  DP4.
  4. DP4 CHECK FOR CORRECT TRACTION MOTOR RPM DURING THE ROAD TEST 
    • Access the freeze frame data (if available) and record the DTC conditions.
    • Access the TCM and monitor the M_SPEED (RPM) PID.
    • Access the TCM and monitor the VSS (SPD) PID.
    • Road test the vehicle. Test drive using freeze frame data conditions (if available).
    Vehicle Speed KM/H (MPH) Traction Motor RPM
    0 (0) 0
    26 (16) 1, 996
    55 (34) 4, 392
    80 (50) 6, 389
    109 (68) 8, 784

    Does the traction motor RPM correspond with the vehicle speed? 

    Yes No
    GO to  DP5. GO to Pinpoint Test TP .
  5. DP5 CHECK FOR CORRECT GENERATOR RPM 
    • Place the gear selector lever in PARK.
    • Start the engine using the engine running diagnostic mode. Refer to DIAGNOSTIC MODES .
    • Access the TCM and monitor the G_SPEED (RPM) PID.
    • Access the TCM and monitor the RPM_TCM (RPM) PID.
    Engine RPM Generator Motor RPM
    0 0
    800 2, 715
    1, 000 3, 394
    1, 200 4, 073
    1, 400 4, 752
    1, 600 5, 430
    1, 800 6, 109
    2, 000 6, 788

    Does the generator RPM correspond with the engine RPM? 

    Yes No
    GO to  DP6. GO to Pinpoint Test TO .
  6. DP6 CLEAR PCM DTCS 
    • Clear the PCM DTCs.
    • Road test the vehicle.
    • Carry out the PCM self-test.

    Are any DTCs present? 

    Yes No
    DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS . Test complete.
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