mdotk

Hi All,

RE: ES350 2010

Yesterday, Check engine + VSD (TRAC) ON light went on together. It happened few hours after car wash and also I reseted the tire pressure light ( maybe that has nothing to do with it).

Those lights come on few hours after auto car wash.

I have read few posts about fuel cap. Mine looks fine, however I cleaned it and tightened it. These light went away and then few minutes after, it came back. I thought the fuel cap was the issue, but I did few trials after that which did not work.

I have never seen the check engine before on my car. Please advise.

Thanks,

jagtoes

What were the codes that were set. I have never has a MIL come on after a car wash. You have a problem which should be in the code that set info.

mdotk

I have pulled the codes:

P0057 : HO2S Heater control circuit Low bank 2 sensor 2
P0161: O2 sensor heater circuit bank 2 sensor 2

What should I do .. any advise ?

I have had an accident in the front passenger side bumper and was fixed more than 1 month ago .. could that be the reason ?

ESh

That’s your post-cat oxygen sensor.

mdotk

So after reading few threads, I came to know the following:

1) Its the downstream left sensor.
2) OEM Part is : Denso 234-4260 Oxygen Sensor

Please confirm

What I don't know is:
1) Is the sensor is the only probability of this code.. so it is not a fuse or fuel cap causing this symptom?
2) Where exactly is the sensor, I have read many threads but it wan't clear.. Is their a reference ?
3) Can I do this myself if I got the sensor socket ? is this done from underneath the car or can I see it under from the hood ?

Thanks,