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Home >> Infiniti >> 2021 >> Q60 Pure, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 7) >> Engine (ECM) >> DTC P0038: Ho2S2 Heater >> Confirmation Procedure
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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.

    TESTING CONDITION:

    Before performing the following procedure, confirm that battery voltage is between 11 V and 16 V at idle.

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Start engine and warm it up to the normal operating temperature.
    2. Turn ignition switch OFF and wait at least 10 seconds.
    3. Turn ignition switch ON.
    4. Turn ignition switch OFF and wait at least 10 seconds.
    5. Start engine and keep the engine speed between 3, 500 and 4, 000 rpm for at least 1 minute under no load.
    6. Let engine idle for 1 minute.
    7. Check 1st trip DTC.

    Is DTC P0038 detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    To check malfunction symptom before repair: Refer to Inspection .

    NO

    Confirmation after repair: INSPECTION END