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HOMESERVICE MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1484 (ENGINE CONTROLS - PINPOINT TESTS (HYBRID))PINPOINT TEST TO: GENERATOR OVERSPEEDTEST PROCEDURE
2005 Ford Taurus SEL, 4D Sedan

Test Procedure

2005 Ford Taurus SEL, 4D SedanSECTION Test Procedure
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, 2011 Ford Fusion, 2010 Mercury Milan, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
  1. TO1 CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODE (DTC) P0A50: CHECK FOR CORRECT GENERATOR RPM 
    • Clear the TCM DTCs.
    • Access the TCM and monitor the G_SPEED (RPM) and RPM_TCM (RPM) PIDs.
    • Place gear selector lever in PARK.
    • Ignition ON, engine running.
    • Record the generator RPM at different engine speeds.
    ENGINE RPM

    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 in the table? 

    Yes No
    GO to  TO2. INSTALL a new transaxle assembly. Refer to the ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION (ECVT)
  2. TO2 CHECK FOR DTCS 

    Is DTC P0C2F present? 

    Yes No
    GO to PINPOINT TEST TP . Unable to duplicate or identify the concern at this time.
    RETURN to SYMPTOM CHARTS for further direction.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.