LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0138, P0158: Ho2S2 >> DTC Confirmation Procedure >> With GST
April 5, 2026: LEMON Manuals is launched! Read the announcement.

With GST

  1. Start engine and warm it up to the normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Start engine and keep the engine speed between 3,500 and 4,000 RPM for at least 1 minute under no load.
  4. Let engine idle for 2 minutes.
  5. Turn ignition switch OFF and wait at least 10 seconds.
  6. Start engine and keep the engine speed between 3,500 and 4,000 RPM for at least 1 minute under no load.
  7. Let engine idle for 2 minutes.
  8. Select "MODE 3" with GST.
  9. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE .
    • When using GST, DTC Confirmation Procedure should be performed twice as much as when using CONSULT-II because GST cannot display MODE 7 (1st trip DTC) concerning this diagnosis. Therefore, using CONSULT-II is recommended. 
scientia non olet · About LEMON Manuals