I just have my 2002 SC430 checked and found out that my car has a code P0155 Heater Circuit Malfunction Bank 2 Sensor 1
I would like to know where is the Bank 2 sensor 1 locates in the car and how to replace it. The Lexus dealer cost me $150 (just for diagnostic the problem)

Thanks in advance
Tom63

 

Drop PearlPower a PM - he's the guru for the SC430. Also, you can do a quick search on the O2 sensor Bank 2 Sensor 1. Here's a related accept it's for sensor 2. If you read on the thread you will noticed that a smoke place can run the diagnoses for $30.

https://www.clublexus.com/forums/sc-...-band-2-a.html

 

Thanks Howdybob22!
I just posted him an email.
In the meantime I still all ears, please advice

 

You could have saved yourself $150 by going to Autozone. They check your CEL lights for free.

Not sure if you have one in your area, but if you do, check them out to save a few bucks.

Welcome to CL

 

Edit - read the other thread.....

 

it's great! Thanks

 

Good info.