2004 Infiniti I35FACTORY OEM SERVICE PROCEDURE

DTC Confirmation Procedure

NOTE: If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION: 

Always perform test at a temperature of 5° C (41° F) or more. 

WITH CONSULT-II 

  1. Start engine and warm it up to normal operating temperature
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Turn ignition switch ON.
  4. Select DATA MONITOR mode with CONSULT-II.
    Fig 1: Displaying CONSULT-II DATA MONITOR Screen
    G00786890Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Make sure that FUEL T/TEMP SE is more than 0° C (32° F).
  6. Start engine and wait at least 20 seconds.
  7. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  .

    If 1st trip DTC is not detected, go to next step.

  8. Stop engine and install EVAP service port adapter and pressure pump to EVAP service port securely.
  9. Pressurize the EVAP line using pressure pump.
  10. Confirm the pressure does not go up.
  11. If pressure go up, go to DIAGNOSTIC PROCEDURE  .

WITH GST 

  1. Start engine and warm it up to normal operating temperature.
  2. Check that voltage between ECM terminal 75 (Fuel tank temperature sensor signal) and ground is less than 4.2V.
    3. Fig 2: Checking Voltage Between ECM Terminal 75 And Ground
    G00786891Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Turn ignition switch OFF and wait at least 10 seconds.
  4. Start engine and wait at least 20 seconds.
  5. Select MODE 7 with GST.
  6. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  .
Factory Service Tools

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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.

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