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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Engine Control System (DTC/Circuit Diagnosis) (VQ35DE) (Except Hybrid) (2 Of 3)) >> DTC/Circuit Diagnosis >> DTC P052A, P052B, P052C, P052D: Intake Valve Timing Control >> DTC Logic >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

  1. PRECONDITIONING

    TESTING CONDITION: 

    Before performing the following procedure, confirm that battery voltage is 10 V or more at idle. 

    G-20 With CONSULT

    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.
    4. Turn ignition switch ON.
    5. On the CONSULT screen, select "ENGINE" >> "DATA MONITOR" >> "COOLAN TEMP/S".
    6. Check "COOLAN TEMP/S" indication value.

    NSM020 With GST

    Follow the procedure "With CONSULT" above.

    Is the value of "COOLAN TEMP/S" - 5°C (23°F) and 45°C (113°F)?

    YES 

    GO TO STEP 2  .

    NO-1 [if it is below - 5°C (23°F)] 

    Warm up the engine until the value of "COOLAN TEMP/S" indicates - 5°C (23°F) and 45°C (113°F). And then GO TO STEP 2  .

    NO-2 [if it is above 45°C (113°F)] 

    Cool the engine down to the value of "COOLAN TEMP/S" indicates - 5°C (23°F) and 45°C (113°F). And then GO TO STEP 2  .

  2. PERFORM DTC CONFIRMATION PROCEDURE-I

    1. Turn ignition switch OFF and wait at 10 seconds.
    2. Turn ignition switch ON.
    3. Set the selector lever in N range.
    4. Start the engine and let it idle for 20 seconds or more.
    5. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES 

    Proceed to DIAGNOSIS PROCEDURE 

    NO 

    INSPECTION END