2014 Sequoia 5.7 Flex: P0157, P0158, P0607 all at once

Afternoon guys, apologies if this isn't in the right place.

I am racking my brain here with all three of these codes showing.

Short story: My dog got under the car and chewed up the Bank 2, sensor 2 oxy sensor wiring (just sensor, not upstream of connector). Of course CEL comes on. Went to O'Reillys and found:
- P0057 (HO2S Heater Control Circuit Low bank 2 sensor 2)
- P0157 (O2 Sensor Circuit Low Voltage bank 2 sensor 2)
- P0607 (Control Module Performance)

Purchased the Denso 234-4624 which crosses to the OEM Denso number 89465-0C190. Cleared the codes. They came back, but this time it was:
- P0157 (see above)
- P0158 (O2 Sensor Circuit High Voltage bank 2 sensor 2)
- P0607 (see above)

After clearing them they keep coming back.

I've checked the wiring for short to ground at the ECM plug for the right rear O2 sensor, no problems. I just checked the coolant sensor wiring, cleaned the MAF and disconnected the battery for the night. My next plan if it comes back is to replace the RH AFR sensor upstream (234-9144) but its $140 and I just want to make sure I'm not missing something obvious.

Any help is appreciated. I hate electronics so this isn't fun for me at all.

 

Bump. Next question is which color wire from the wiring diagram associates with the black black blue and white wires from the front and rear sensors?

 

Wish I could help but no idea. If you got all the wires, sensors taken care of, should be good to go, maybe he got something else you can’t see?

 

Maybe check for melted wires or blown fuse, some times the o2 sensor heater circuit isn’t fused and it could have melted some wires up stream. Sounds like it’s time to unplug the sensor and check voltages with a DMM. That’s where I would start.

 

This sounds similar to what happened to my Tundra. I had some chewed up looking wires on my passenger side O2 sensor from what appeared to be an attempt to steal my cats. I had similar codes: P0158 and P0607. It made sense to me to replace the bank 2 O2 sensor. I replaced it with the Denso part and cleared the codes. After warming up, I was still getting a P0158 code. I watched the voltage for that sensor climb to 1.275 V after warm-up and stay there instead of fluctuating based on the s1 sensor. I replaced the upstream heated oxygen sensor (b2s1) and it made no difference. I installed the Toyota branded O2 sensor and was getting a P0157. The solution for me ended up being an ECM replacement which is what the P0607 code was pointing to. I’m guessing the chewed up wires end up shorting the ECM since from what I could tell from wiring diagrams, there are no fuses between these sensors and the ECM.