Dlc issues

[Lex]

I can't get a fault code through scan tool but after driving for 40 mins I get check engine light and a code that translates to no signal to left 02 sensor for 4mins" has anyone run into this error before

Loose wire(s) at the pcm?

 

[l67vxcomm]

Loose wire(s) at the pcm?

Not that I can see, I'm going to replace o2 sensor and go from there