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Home >> Infiniti >> 2017 >> QX80 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P0603: ECM >> DTC Logic >> DTC Confirmation Procedure

DTC Confirmation Procedure

  1. PRECONDITIONING

    TESTING CONDITION: 

    Before performing the following procedure, confirm that battery voltage is 11 V or more with ignition switch ON. 

    GO TO STEP 2  .

  2. PERFORM DTC CONFIRMATION PROCEDURE

    1. Turn ignition switch ON and wait at least 1 second.
    2. Turn ignition switch OFF and wait at least 10 seconds.
    3. Repeat step 1 and 2 for 10 times.
    4. Turn ignition switch ON.
    5. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES 

    Proceed to DIAGNOSIS PROCEDURE .

    NO 

    INSPECTION END