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Home >> Nissan-Datsun >> 2003 >> Maxima GLE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0139 Or DTC P0159 >> DTC Confirmation Test (Using CONSULT-II)

DTC Confirmation Test (Using CONSULT-II)

  1. Start engine and warm to normal operating temperature. Turn ignition off and wait at least 10 seconds. Start engine and keep the engine speed between 3500-4000 RPM for at least 1 minute under no-load. Let engine idle for 1 minute.
  2. Select HO2S2 (B1)/(B2) P0139/P0159 of HO2S2 in DTC WORK SUPPORT mode with CONSULT-II. Start engine. Follow instructions on CONSULT-II screen.
  3. Press SELF-DIAG RESULTS. If OK is displayed, system is okay at this time. If NG is displayed, go to DIAGNOSTIC PROCEDURE . If CANNOT BE DIAGNOSED is displayed, go to next step.
  4. Turn ignition switch OFF and leave the vehicle in a cool place. Turn ignition switch ON and select COOLANTEMP/S in DATA MONITOR mode with CONSULT-II. Start engine and warm it up while monitoring COOLANTEMP/S indication on CONSULT-II. When COOLANTEMP/S indication reaches to 158°F (70°C), return to step  2.
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