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  • P0016 Engine Speed Signal Mismatch (Diesel)

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    P0016 ENGINE SPEED SIGNAL MISMATCH (DIESEL)

    When Monitored and Set Condition

    When Monitored: While Engine is running.
    Set Condition: When the engine speed detected by the Engine Position Sensor (cam) and the Engine Speed
    Sensor (crank) differ by a specified RPM amount.

    POSSIBLE CAUSES

    • DAMAGE TO THE ESS OR EPS
    • MECHANICAL MISALIGNMENT OF THE ESS OR EPS
    • MECHANICAL MISALIGNMENT OF THE CAMSHAFT AND CRANKSHAFT GEARS
    • INTERMITTENT CONDITION

    DIAGNOSTIC PROCEDURE

    NOTE: Refer to VERIFICATION TESTS for appropriate verification test procedures.

    1. Visually inspect the condition of the tone wheel, ESS, and EPS for damage.  Are any of the components damaged?
      Yes --> Repair or replace any damaged component. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
      No --> Go To 2
    2. Verify the speed indicator ring is properly positioned relative to the locating pin in the front face of the crankshaft. Is the speed indicator ring properly installed?
      Yes --> Go To 3
      No --> Repair the speed ring indicator ring installation. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
    3. Check the mechanical alignment of the camshaft gear to the crankshaft gear. Refer to service information for assistance. Are the gear teeth in proper alignment?
      Yes --> Refer to the SYMPTOM: INTERMITTENT CONDITION Symptom (Diagnostic Procedure). Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
      No --> Repair the gear alignment. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).

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