2008 Infiniti G35 BaseFACTORY OEM SERVICE PROCEDURE

Component Function Check

  1. PERFORM COMPONENT FUNCTION CHECK-I

    Without CONSULT-III 

    1. Start engine and warm it up to the normal operating temperature.
    2. Turn ignition switch OFF and wait at least 10 seconds.
    3. Start engine and keep the engine speed between 3, 500 and 4, 000 rpm for at least 1 minute under no load.
    4. Let engine idle for 1 minute.
    5. Check the voltage between ECM harness connector and ground under the following condition.
      VOLTAGE SPECIFICATION

      DTC ECM Ground Condition Voltage
      Connector Terminal
      P0137 F102 76 Ground Revving up to 4, 000 rpm under no load at least 10 times The voltage should be above 0.68V at least once during this procedure.
      P0157 80

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: GO TO 2.

  2. PERFORM COMPONENT FUNCTION CHECK-II

    Check the voltage between ECM harness connector and ground under the following condition.

    VOLTAGE SPECIFICATION

    DTC ECM Ground Condition Voltage
    Connector Terminal
    P0137 F102 76 Ground Keeping engine at idle for 10 minutes The voltage should be above 0.68V at least once during this procedure.
    P0157 80

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: GO TO 3.

  3. PERFORM COMPONENT FUNCTION CHECK-III

    Check the voltage between ECM harness connector and ground under the following condition.

    VOLTAGE SPECIFICATION

    DTC ECM Ground Condition Voltage
    Connector Terminal
    P0137 F102 76 Ground Coasting from 80 km/h (50 MPH) in D position (A/T), 4th gear position (M/T) The voltage should be above 0.68V at least once during this procedure.
    P0157 80

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Go to "DIAGNOSIS PROCEDURE ".

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.