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Home >> Nissan-Datsun >> 2008 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0137 Through P0443 >> DTC P0400 EGR Function >> DTC Confirmation Procedure >> With GST
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With GST

  1. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
  2. Check engine coolant temperature in Service $01 with GST.

    Engine coolant temperature: Less than 40°C (104°F) 

    If the value is out of range, park the vehicle in a cool place and allow the engine temperature to stabilize.

    Do not attempt to lower the coolant temperature with a fan or means other than ambient air. Doing so may produce an inaccurate diagnostic result.

  3. Start engine and let it idle monitoring the engine coolant temperature value. When the engine coolant temperature reaches 70°C (158°F), immediately go to the next step.
  4. Maintain the following conditions for at least 1 minute.

    Engine speed: 1, 200 - 2, 800 rpm 

    Vehicle speed: More than 10 km/h (6 MPH) 

    Shift lever: Suitable position 

  5. Stop vehicle.
  6. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
  7. Select Service $07 with GST.
  8. Check 1st trip DTC.
  9. If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE ".
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