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HOMESERVICE MANUALSFORD2018FUSION ENERGI TITANIUMREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - PINPOINT TESTS (HYBRID)PINPOINT TESTS TM: TRACTION MOTOR OVER TEMPERATURETEST PROCEDURE
2018 Ford Fusion Energi Titanium

Test Procedure

2018 Ford Fusion Energi TitaniumSECTION Test Procedure
  1. TM1 CHECK FOR SELF-TEST DTCS 
    • Ignition ON, engine OFF.

    Are DTCs P0A2B, P0A2C, P0A2D or P0A2F present? 

    Yes No
    For DTC P0A2F, GO to  TM2.
    For all others, GO to  TM4.    		 Unable to duplicate or identify the concern at this time.
    RETURN to SYMPTOM CHARTS for further direction.
  2. TM2 CHECK FOR TRANSMISSION TEMPERATURE SENSOR CORRELATION 
    • Ignition ON, engine OFF.
    • Access the SOBDMC and monitor the GCLTEMP (TEMP), MCLTEMP (TEMP) and TFT (TEMP) PIDs.
    • Road test the vehicle while monitoring the PIDs.

    Do all three temperature PIDs indicate an over temperature condition? 

    Yes No
    REFER to the appropriate Automatic Transmission Cooling article, to diagnose a transmission cooling concern. GO to  TM3.
  3. TM3 INTERMITTENT CHECK 
    • Access the SOBDMC and monitor the GCLTEMP (TEMP), MCLTEMP (TEMP) and TFT (TEMP) PIDs.
    • While observing the PIDs, carry out the following:
      • Lightly tap on the transmission assembly connector and wiggle the accessible harness from the transmission assembly to the TCM.
      • Wiggle the transmission assembly connector.
      • Look for sudden changes in the temperature when the harness and connectors are wiggled.

    Is a concern present? 

    Yes No
    REPAIR as necessary.
    Clear the SOBDMC DTCs. REPEAT the self-test.    		 GO to PINPOINT TEST Z .
  4. TM4 CHECK THE AUTOMATIC TRANSMISSION FLUID LEVEL 
    NOTE: A low automatic transmission fluid level may cause a traction motor over temperature condition.
    • Verify the automatic transmission fluid level is correct. Refer to the appropriate Automatic Transmission article.

    Is the transmission fluid level correct? 

    Yes No
    GO to  TM5. REFER to the appropriate Automatic Transmission Cooling article, to diagnose a transmission fluid level concern.
  5. TM5 CHECK THE RESISTANCE OF THE MCT SENSOR 
    NOTE: Refer to the chart at the beginning of this test for the resistance specifications.
    • Ignition OFF.
    • Transmission Assembly connector disconnected.
    • Measure the resistance between:
    (+) Transmission Assembly Connector, Component Side (-) Transmission Assembly Connector, Component Side
    MCT - Pin 16 MCTRTN - Pin 17

    Is the resistance within specification? 

    Yes No
    GO to  TM6. INSTALL a new Transmission assembly.
    REFER to the appropriate Automatic Transmission article.
    Clear the SOBDMC DTCs. REPEAT the self-test.
  6. TM6 CHECK THE MCT AND MCTRTN CIRCUITS FOR AN OPEN 
    • TCM-B connector disconnected.
    • Measure the resistance between:
    (+) Transmission Assembly Connector, Harness Side (-) TCM-B Connector, Harness Side
    MCT - Pin 16 MCT - Pin 22
    MCTRTN - Pin 17 MCTRTN - Pin 21

    Are the resistances less than 5 ohms? 

    Yes No
    GO to  TM7. REPAIR the open circuit. Clear the SOBDMC DTCs. REPEAT the self-test.
  7. TM7 CHECK THE MCT CIRCUIT FOR A SHORT TO GROUND 
    • Measure the resistance between:
    (+) Transmission Assembly Connector, Harness Side (-)
    MCT - Pin 16 Ground

    Is the resistance greater than 10K ohms? 

    Yes No
    GO to  TM8. REPAIR the short circuit. Clear the SOBDMC DTCs. REPEAT the self-test.
  8. TM8 CHECK THE MCT AND MCTRTN CIRCUITS FOR A SHORT TO VOLTAGE 
    • Ignition ON, engine OFF.
    • Measure the voltage between:
    (+) Transmission Assembly Connector, Harness Side (-)
    MCT - Pin 16 Ground
    MCTRTN - Pin 17 Ground

    Is any voltage present? 

    Yes No
    REPAIR the short circuit. Clear the SOBDMC DTCs. REPEAT the self-test. GO to  TM9.
  9. TM9 COMPARE THE MONITORED TEMPERATURE READING 
    NOTE: Refer to the chart at the beginning of this test for the resistance specifications.
    • Ignition OFF.
    • Measure the resistance between:
    (+) Transmission Assembly Connector, Component Side (-) Transmission Assembly Connector, Component Side
    MCT - Pin 16 MCTRTN - Pin 17
    • Record the value.
    • Transmission Assembly connector connected.
    • TCM-B connector connected.
    • Ignition ON, engine OFF.
    • Access the SOBDMC and monitor the MCLTEMP (TEMP) PID.

    Does the TEMP PID correspond to the recorded MCT SENSOR resistance value? 

    Yes No
    GO to  TM10. GO to PINPOINT TEST Z .
  10. TM10 CHECK FOR CORRECT OPERATION 
    • Ignition OFF.
    • Ignition ON, engine OFF.
    • Access the SOBDMC and monitor the MCLTEMP (TEMP) PID.
    • Record the PID value.
    • Drive the vehicle while monitoring the PID.
    • Engine at normal operating temperature.
    • Record the PID value.

    Does the PID value change? 

    Yes No
    GO to PINPOINT TEST Z . INSTALL a new Transmission assembly.
    REFER to the appropriate Automatic Transmission article.
    Clear the SOBDMC DTCs. REPEAT the self-test.
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When to See a Mechanic

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.