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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.
NOTE: Before proceeding, ensure battery voltage is more than 11 volts at idle. DO NOT raise engine speed above 3600 RPM during DTC confirmation test.
  1. Start engine and warm to normal operating temperature. Select DATA MONITOR mode with CONSULT-II. While holding engine speed at 2000 RPM, observe HO2S1 (B1)/(B2) voltage with CONSULT-II. Voltage should go above .70 volt at least once. Voltage should go below .21 volt at least once. If voltage is as specified, go to next step. If voltage is not as specified, go to DIAGNOSTIC PROCEDURE  .
  2. Let engine idle for at least 5 minutes. Maintain the following conditions for at least 50 consecutive seconds:
    • B/FUEL SCHDL: 3 msec or more.
    • ENG SPEED: 1800-3000 RPM.
    • VHCL SPEED SE: more than 43 MPH.
    NOTE: DTC P0134 and/or DTC P0154 may be displayed on CONSULT-II during this test.

    If DTC is detected, go to DIAGNOSTIC PROCEDURE  . If DTC is not detected, system is okay at this time.

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