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Home › Nissan-Datsun › 2004 › Xterra SE, 4WD › Repair and Diagnosis › Engine Performance › System › Engine Control System - VG33E › DTC P1402: EGR Function › DTC Confirmation Procedure › With GST

With GST

  1. Turn ignition switch ON and select MODE 1 with GST.
  2. Check that engine coolant temperature is within the range of -10 to 40°C (14 to 104°F).
  3. Check that voltage between ECM terminal 63 (EGR temperature sensor signal) and ground is less than 4.8V.
  4. Start engine and let it idle for at least 60 seconds.
  5. Stop engine.
  6. Perform from step 1 to 4.
  7. Select MODE 3 with GST.
  8. If 1st trip DTC is detected, go to Diagnostic Procedure .
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