Sign in to follow this  
larryd2609

Rx300 2003 Error Code P0135

Recommended Posts

Hi

I'm new to the forum and I think it is great...

I have a RX300, year 2003 which have been running great. Last week the check engine light came on

with the VSC light...

I took the car to my mechanic and he gave me this error code

P0135 O2 Sensor Heater Circuit (that's the code from the car)

> 1 fault B1-S1

My problem is I don't know where this sensor is and whether or not it is something I can do myself.

I sent this information the the Lexus dealer and they sent me this sensor

Air fuel ratio sensor --- 89467-48011 --- $170.42

This doesn't seem like the same sensor, but I don't know. Can someone share some light on this please.

Thanks

Larry

Share this post


Link to post
Share on other sites

Larry- The sensor they sent you IS correct for B1S1 but the code SHOULD BE P1135 instead of P0135 It is actually an A/F ratio sensor. When you say it doesn't LOOK like the same sensor, what do you mean by that? It should look identical to the one that's on the car if it is the original. The P1135 points directly to the rear A/F ratio sensor heater malfunction. The P0135code would be a generic code for the same thing, but an oxygen sensor which is NOT what you have. It is found on the rear of the engine (next to the firewall) in the exhaust pipe and must be accessed by use of a lift or a jack from underneath. Do a search, there is plenty on it, with pictures, and is the most common one to go out but also the most difficult one to change. It won't hurt to drive it that way until you have a chance to change it or have someone change it. It is the same sensor as the one that you see when you open the hood and look straight down, just a lot harder to get to. If you need more help, come back and one of us here will help you.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this