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Home >> Infiniti >> 2003 >> I35 >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Engine Control System) >> DTC P0127: IAT Sensor >> DTC Confirmation Procedure >> Testing Condition:
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Testing Condition:

WARNING: This page is about a different car, the 2004 Infiniti I35. However, it is still accessible from the selected car via links, so may be relevant.

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.