1-6 code exhaust sensor cannot locate sensor

[ThierryD]

2011 DF90A I am getting a 1-6 code. The dealer said it is the port side exhaust sensor. I have looked everywhere and still cannot find the sensor. The fail safe is activated. I pulled the lower covers off also and still cannot find it. any suggestions?
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[artdf175]

from looking at the part on the part page
i would be guessing one if two sensors
top left corner of the exhaust cover or the sensor at the bottom center of the the same exhaust cover plate
Art

[Murray]

78C0D251-12E0-4D5A-8459-ED1004D01330.png From 2009 DF90, Suzuki must have moved the sensor, I’d bet it’s at the bottom where the wires are.