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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0139: Ho2S2 Circuit Slow Response - Bank 1 Or DTC P0159: Ho2S2 Circuit Slow Response - Bank 2 >> DTC Confirmation Test (Using CONSULT-II)

DTC Confirmation Test (Using CONSULT-II)

WARNING: This page is about a different car, the 2002 Nissan Maxima and 2002 Infiniti I35. However, it is still accessible from the selected car via links, so may be relevant.
  1. Start engine and warm to normal operating temperature. Turn ignition off and wait at least 10 seconds. Turn ignition on. Select DATA MONITOR mode with CONSULT-II. Ensure COOLAN TEMP/S indicates more than 158°F (70°C).
  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. Stop engine. Allow engine to cool until COOLAN TEMP/S indicates less than 158°F (70°C). Turn ignition on. Select DATA MONITOR mode with CONSULT-II. Start engine. When COOLAN TEMP/S reaches 158°F (70°C), return to step  2 .
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