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Home >> Infiniti >> 2017 >> QX80 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 4) >> DTC/Circuit Diagnosis >> DTC P00B3, P00B4: Engine Coolant Temperature Sensor 2 >> DTC Logic >> DTC Confirmation Procedure

DTC Confirmation Procedure

  1. PRECONDITIONING

    If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

    1. Turn ignition switch OFF and wait at least 10 seconds.
    2. Turn ignition switch ON.
    3. Turn ignition switch OFF and wait at least 10 seconds.

    TEST CONDITION:

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

    GO TO STEP 2  .

  2. PERFORM DTC CONFIRMATION PROCEDURE

    1. Turn ignition switch ON and wait at least 5 seconds.
    2. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES 

    Proceed to DIAGNOSIS PROCEDURE .

    NO 

    INSPECTION END

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