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Home >> Ford >> 2012 >> Taurus SE >> Repair and Diagnosis >> External Pages >> Different car >> Section 1848 (Engine Controls - Pinpoint Tests (Diesel)) >> Pinpoint Tests Y: Powertrain Control Module (PCM) Read Only Memory (ROM) Failure >> Test Procedure
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Test Procedure

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Y1 PRELIMINARY DIAGNOSIS FOR DIAGNOSTIC TROUBLE CODES (DTCS) P0601 OR P062F 
    • Ignition ON, engine OFF.
    • Carry out the PCM self-test.

    Are DTCs P0601 or P062F present? 

    Yes No
    GO to  Y2. The concern is not present at this time. CHECK for a loose connection, and damaged or corroded terminals. WIGGLE the harness attempting to recreate the concern. REPAIR as necessary. REFER to NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX , if a driveability concern exists.
  2. Y2 PROGRAM THE PCM 

    Are DTCs P0601 or P062F present? 

    Yes No
    GO to  Y3. The test is complete.
  3. Y3 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.
    • Verify the concern is still present.

    Is the concern still present? 

    Yes No
    INSTALL a new PCM.
    REFER to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) .
    The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.