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Home >> Nissan-Datsun >> 2017 >> Leaf SL >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC C1607,: C1608 EPS Control Unit >> Diagnosis Procedure >> Diagnostic Test
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Diagnostic Test

  1. CHECK TERMINALS AND HARNESS CONNECTORS

    Check EPS control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace malfunctioning parts.

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Repair or replace malfunctioning parts.

  2. PERFORM SELF-DIAGNOSIS

    G-20With CONSULT 

    1. Erase "Self-Diagnostic Result" results of "EPS" control unit.
    2. Turn the power switch OFF, and then wait 10 seconds and more.
    3. Turn the power switch OFF to ON.
    4. Perform "Self-Diagnostic Result" of "EPS" control unit.

    Is DTC "C1607" or "C1608" detected?

    YES 

    EPS control unit is malfunctioning. Replace steering column assembly. Refer to REMOVAL AND INSTALLATION .

    NO 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .