With Consult-II

WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Start engine and warm it up to normal operating temperature.
Select "A/F SEN1 (B1)" or "A/F SEN1 (B2)" in "DATA MONITOR" mode with CONSULT-II.
Check "A/F SEN1 (B1)" or "A/F SEN1 (B2)" indication.
If the indication is constantly approx. 1.5V and does not fluctuates, go to "DIAGNOSTIC PROCEDURE ".

If the indication fluctuates around 1.5V, go to next step.
Select "A/F SEN1 (B1) P1276" or "A/F SEN1 (B2) P1286" of "A/F SEN1" in "DTC WORK SUPPORT" mode with CONSULT-II.
Touch "START".

When the following conditions are met, "TESTING" will be displayed on the CONSULT-II screen.

Fig 1: CONSULT-II A/F SEN1 B1 P1276 Display

Courtesy of NISSAN MOTOR CO., U.S.A.

ENGINE SPEED REFERENCE TABLE

Item	Specification
ENG SPEED	1, 100 - 3, 200 RPM
Vehicle speed	More than 64 km/h (40 MPH)
B/FUEL SCHDL	1.0 - 8.0 msec
Selector lever	D position with "OD" ON

If "TESTING" is not displayed after 20 seconds, retry from step 2.

Release accelerator pedal fully.
NOTE: Never apply brake during releasing the accelerator pedal.

Fig 2: CONSULT-II A/F SEN1 B1 P1276 Display
Courtesy of NISSAN MOTOR CO., U.S.A.
Make sure that "TESTING" changes to "COMPLETED".
If "TESTING" changed to "OUT OF CONDITION", retry from step 6.

Fig 3: CONSULT-II A/F SEN1 B1 P1276 Display
Courtesy of NISSAN MOTOR CO., U.S.A.
Make sure that "OK" is displayed after touching "SELF-DIAG RESULT".
If "NG" is displayed, go to "DIAGNOSTIC PROCEDURE ".