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Home >> Infiniti >> 2004 >> I35 >> Repair and Diagnosis >> Engine Performance >> System >> 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).
    1. Turn ignition switch ON.
    2. Select DATA MONITOR mode with CONSULT-II.
    3. Fig 1: Displaying CONSULT-II DATA MONITOR Screen
      G00786591Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check the engine coolant temperature.
    5. 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.