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Home >> Infiniti >> 2004 >> FX45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0127 IAT Sensor >> DTC confirmation procedure >> Testing Condition
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Testing Condition

This test may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle  .

With CONSULT-II 

  1. Wait until engine COOLANT temperature is less than 90° C (194° F)
    • Turn ignition switch ON.
    • Select DATA MONITOR mode with CONSULT-II.
      Fig 1: Displaying Conditions With CONSULT-II In Data Monitor Mode
      G00344715Courtesy of NISSAN MOTOR CO., U.S.A.
    • Check the engine COOLANT temperature.
    • If the engine COOLANT temperature is not less than 90° C (194° F), turn ignition switch OFF and cool down engine.
      • Perform the following steps before engine COOLANT temperature is above 90° C (194° F).
  2. Turn ignition switch ON.
  3. Select DATA MONITOR mode with CONSULT-II.
  4. Start engine.
  5. Hold vehicle speed at more than 70 km/h (43 MPH) for 100 consecutive seconds.
  6. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  .

With GST 

Follow the procedure With CONSULT-II above.