LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2010 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC U0164 Through P0181 >> DTC P0116: ECT Sensor >> DTC Logic >> DTC Confirmation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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, do not add fuel. 

      GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE
    1. Start engine and warm it up to normal operating temperature.
    2. Rev engine up to 2, 000 rpm for more than 10 minutes.
    3. Move the vehicle to a cool place, then stop engine.
    4. Check resistance between "fuel level sensor unit and fuel pump (main)" terminals 4 and 5.
    5. Soak the vehicle until the resistance between "fuel level sensor unit and fuel pump (main)" terminals 4 and 5 becomes 0.5 kΩ higher than the value measured before soaking.
      CAUTION: Never turn ignition switch ON during soaking.
      NOTE: Soak time changes depending on ambient air temperature. It may take several hours.
    6. Start engine and let it idle for 20 minutes.
    7. Check 1st trip DTC.

      Is 1st trip DTC detected? 

      YES: Go to "DIAGNOSIS PROCEDURE ".

      NO: INSPECTION END