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Home >> Nissan-Datsun >> 2008 >> Frontier XE >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Qr25DE) >> Component Diagnosis >> P0127 IAT Sensor >> DTC Confirmation Procedure

DTC Confirmation Procedure

CAUTION: Always drive vehicle at a safe speed.
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: 

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-III

  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-III.
    3. Check the engine coolant temperature.
    4. 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. Start engine.
  3. Hold vehicle speed at more than 70 km/h (43 MPH) for 100 consecutive seconds.
  4. Check 1st trip DTC.
  5. If 1st trip DTC is detected, go to "DIAGNOSIS PROCEDURE ".

WITH GST

Follow the procedure With CONSULT-III above.

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