Help! Trac and engine light
Thread Starter
Driver
Joined: Jul 2003
Posts: 133
Likes: 2
From: California
Help! Trac and engine light
Hi, was driving on the freeway and the trac and engine lights came on.. Noticed that I am no longer getting the Eco light when coasting. Ran the codes and it's P0157 and C1201. I have recently changed tires, not sure what other reason can cause the lights.
Lead Lap
Joined: May 2006
Posts: 3,999
Likes: 37
From: FL
Can we assume you are still driving your ES300 listed in your profile? This is 3rd Generation RX and not the ES forum(s).
The code P0157 is for an O2 sensor. C1201 will come on as a result of an emissions error and can be ignored in this case.
Moderators, be prepared to move this thread as needed to its rightful location.
The code P0157 is for an O2 sensor. C1201 will come on as a result of an emissions error and can be ignored in this case.
Moderators, be prepared to move this thread as needed to its rightful location.
Lead Lap
Joined: May 2006
Posts: 3,999
Likes: 37
From: FL
Have you tried clearing the code to see if it comes back or not? May have been just a one time thing.
Here is the diagram from Sewell:
http://lexus.sewellparts.com/oem-cat...X350-2010.html
Before purchasing you will want to make sure of part numbers as there are differences between those built in Canada and those built in Japan for some of these parts. You can also check with Denso:
http://densoautoparts.com/find-my-pa...icle-selection
Here is the diagram from Sewell:
http://lexus.sewellparts.com/oem-cat...X350-2010.html
Before purchasing you will want to make sure of part numbers as there are differences between those built in Canada and those built in Japan for some of these parts. You can also check with Denso:
http://densoautoparts.com/find-my-pa...icle-selection
Thread Starter
Driver
Joined: Jul 2003
Posts: 133
Likes: 2
From: California
Thank you for the info, assuming my rx is built in Canada, the location of the sensor should be the same right? And from the sewell link, I'm assuming it should be part 89465A? And that is for bank 2 sensor 2?
I've also reset the light once before, drive for a week or so and now it's back. Just reset it again and try to see if it was the gas cap.
I've also reset the light once before, drive for a week or so and now it's back. Just reset it again and try to see if it was the gas cap.
Last edited by sush1a; May 8, 2014 at 04:17 PM.
Instructor
Joined: Oct 2013
Posts: 908
Likes: 59
From: Lincon, CA
Where was it built?
"assuming my RX is built in Canada,..."
No need to assume. If your VIN starts with "J" it was made in Japan. If it starts with another letter, it was made elsewhere. Hope this helps.
Ray A.
No need to assume. If your VIN starts with "J" it was made in Japan. If it starts with another letter, it was made elsewhere. Hope this helps.
Ray A.
Thread Starter
Driver
Joined: Jul 2003
Posts: 133
Likes: 2
From: California
I actually knew that, wife just came home and vin starts with 2T, so not Japan. But still unsure which sensor I would need to purchase to replace bank 2 sensor 2.
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Rookie
Joined: Oct 2013
Posts: 93
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From: CA
I'm just assuming here, but it could be that there was a failed attempt to steal your CAT converter and left a crack behind it, thus now you have an exhaust leak. Happened to a friend of mine.
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Thread Starter
Driver
Joined: Jul 2003
Posts: 133
Likes: 2
From: California
And if its the sensor, the bank 2 sensor 2 post cat meaning the power connector would be inside the car under carpet, a PIA to get to, correct?
Thanks guys for the inputs.
Lexus Test Driver
Joined: Aug 2009
Posts: 5,723
Likes: 114
From: NJ
It might not be an attempt to steal the cat, but definitely a possibility that there could be a crack down there since wife just ran over something a week prior to this happening. Will need to jack it up and look under later on.
And if its the sensor, the bank 2 sensor 2 post cat meaning the power connector would be inside the car under carpet, a PIA to get to, correct?
Thanks guys for the inputs.
And if its the sensor, the bank 2 sensor 2 post cat meaning the power connector would be inside the car under carpet, a PIA to get to, correct?
Thanks guys for the inputs.
How many miles on the car? Seems a bit early for a oxygen sensor to go.
Thread Starter
Driver
Joined: Jul 2003
Posts: 133
Likes: 2
From: California
The car has less than 40k miles. Only happened recently after my wife ran over a rock that damaged the rims and needed a tire replacement. after resetting the light, the car was fine for a few days until staying idle at one spot, then it came back on. Will have time this weekend to take a look under the car.
Thread Starter
Driver
Joined: Jul 2003
Posts: 133
Likes: 2
From: California
Can anybody confirm for me that 89465A is the bank 2 sensor 2 oxygen sensor from the sewell diagram above provided by RX330inFL? Because there is also a 89465(no A) that has a slightly different part number right behind another cat.
Lead Lap
Joined: Sep 2009
Posts: 462
Likes: 4
From: NV
The car has less than 40k miles. Only happened recently after my wife ran over a rock that damaged the rims and needed a tire replacement. after resetting the light, the car was fine for a few days until staying idle at one spot, then it came back on. Will have time this weekend to take a look under the car.
