Review on 🔌 Denso 234-4622 Downstream Oxygen Sensor: Black, 4-Terminal Plug – Ultimate Efficiency by Aaron Schultz

This was perfect for my 2012 RAV4. This not only cleared my P0137 code (Check Engine light) but also solved another annoying problem. My Trac Off and 4WD lights came on and stayed on. Worse, the buttons that control these functions turned out to be disabled. The service manager at the local Toyota dealership could not explain the reason. I've driven 55 miles since replacing the O2 sensor and everything seems functional and stable. UPDATE February 28, 2020: A year after installation (almost to the exact date) the dashboards came on again. I will put in another new O2 sensor and see if it clears it again.