Lexus

Lexus troubleshooting questions? Ask a Lexus Expert

Ask an Expert,
Get an Answer ASAP!

Lexus IS250: I have a lexus is250 and the chck vsc light came…

Customer Question
I have a lexus is250...
I have a lexus is250 and the chck vsc light came on. I checked it at Autozone and it referred to one side catalytic converter. Is there other non expensive cause?
Submitted: 2 years ago.Category: Lexus
Show More
Show Less
Ask Your Own Lexus Question
Answered in 1 minute by:
7/2/2015
Lexus Mechanic: Ron Z., - Lexus Tech - replied 2 years ago
Ron Z.
Ron Z., - Lexus Tech -
Category: Lexus
Satisfied Customers: 19,755
Experience: 18+yrs experience. State Inspector and Lexus Diagnostics
Verified
Hello! Welcome to the site! Thanks for coming! I'm Ron Z. I'm here to provide as much information and insight as I can, to best answer your question.
Can you give me the "p-code" associated with this? (usually just to the left of the description on the AutoZone print-out)
Ask Your Own Lexus Question
Customer reply replied 2 years ago

I do not have it.

Lexus Mechanic: Ron Z., - Lexus Tech - replied 2 years ago
Ok. Without the p-code I cannot know if there are any other possible causes or even if the AutoZone diagnostic was correct. I can tell you this- if the p-code was P0420 (Bank1) or P0430 (bank2) then unfortunately, on Lexus, these are very straight forward codes pointing to the Converter failing. The Oxygen Sensors measure the amount of emissions in the exhaust going into, and then out of the converter. When they see that the converter is not "cleaning" the exhaust enough to meet specs, the Converter is deemed "below threshold" and the P0420/P0430 is set. Make sure there are no current cylinder misfires. Make sure there are no leaks in the exhaust system. Which, if there were, you should be able to hear. Sounding like a repeating "tick" or "puff" from the exhaust. Usually more prodominate when the engine is cold. Make sure to include the exhaust manifold when checking for leaks/cracks. If these check ok, then most commonly, the Converter is "on it's way out" and will need replacement in the near future. Keep in mind, you will need a replacement converter that meets specs. Those "universal" or "discount" converters sold at some after market parts stores do not meet specs, and will not cure a P0420/P0430. If there were any other codes stored along with either, or the code was anything besides one of these... then yes, there is a possibility that the Converter is not the root of the problem. But again, I'd need those p-codes to give you insight into that. Please remember, your rating is required. Leave a rating using the rating system at the top of this page or accept the answer and let me know how my service was today! You can ask follow-up questions any time, even after you rate or accept.
Ask Your Own Lexus Question
Was this answer helpful?
Ask Ron Z. Your Own Question
Ron Z.
Ron Z.
Ron Z., - Lexus Tech -
Category: Lexus
Satisfied Customers: 19,755
19,755 Satisfied Customers
Experience: 18+yrs experience. State Inspector and Lexus Diagnostics

Ron Z. is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU!

JugheadUSA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

lexpert

lexpert

Lexus Master tech

2,100 satisfied customers

Master Certified with lexus, 8 years experience with Lexus

Skyvisions

Skyvisions

ASE Certified Technician

1,760 satisfied customers

Lexus Expert

Ron Z.

Ron Z.

- Lexus Tech -

19,755 satisfied customers

18+yrs experience. State Inspector and Lexus Diagnostics

Chris (aka - Moose)

Chris (aka - Moose)

Technician

315 satisfied customers

16 years of experience

AMD

AMD

Master Technician

270 satisfied customers

L1 Advanced Level Diagnostics Specialist

George H.

George H.

ASE Certified Technician

221 satisfied customers

15+ years ASE Master w/L1 Drivability certification

Tim Mohr

Tim Mohr

ASE MASTER

126 satisfied customers

30 YEARS EXPERIENCE, FORIEGN AND DOMESTIC, GAS AND DIESEL

< Previous | Next >

Related Lexus Questions
Vehicle was involved in a light front end collision,
vehicle was involved in a light front end collision, replaced OE headlight with an A/M and the AFS light is blinking and giving me a scan code of B2416 … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
My ignition wont start, the wheel is locked, I have tried
My ignition wont start, the wheel is locked, I have tried turning the key whilst mving the wheel but to no avail … read more
Jake
Jake
308 satisfied customers
I just purchased a 2004 LS430. The stereo powers up and all
I just purchased a 2004 LS430. The stereo powers up and all functions work (AM,FM,CD, etc.), but there is no sound from the speakers. This is not a Mark Levinson system, just a stock "premium" system.… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,760 satisfied customers
2006 GX470. Front AC will not blow. Rear AC functioning
2006 GX470. Front AC will not blow. Rear AC functioning normally. … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Check engine vsc light on. Stays on. flashes on computer
just pushing the TRAC button on the console. no change. … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,760 satisfied customers
CD stacker on our 1929 Lexus LS400 showing "Error" And wont
Second opinion] CD stacker on our 1929 Lexus LS400 showing "Error" … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,760 satisfied customers
Itwaas sitting in the garage for a few days on e, when I
itwaas sitting in the garage for a few days on e, when I crank this morning the vsc light came on, tracking indicator and check engine indicator … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,760 satisfied customers
Car won't run unless my foot is on accelerator. DTCs P0100,
Car won't run unless my foot is on accelerator. DTCs P0100, P0101, P0110, and P1150. Not sure it's the mass air flow sensor. It has correct voltage and ohm readings. Was thinking I might need to clean… read more
jc_davil
jc_davil
34 satisfied customers
I have a 2016 RX 350 that has had a rattle in the dashboard
I have a 2016 RX 350 that has had a rattle in the dashboard since the day I got it. It rattles between 25 and 30 mph and as of late, between 40-45 mph and also 55-60 mph, if the road is anything but s… read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,198 satisfied customers
My 2002 Lexus SC 430 with ,000 miles the air conditioner is
My 2002 Lexus SC 430 with 69,000 miles the air conditioner is working, but the air coming out of the vents is not as cold as it should be. I have never changed the air conditioner filter. When set at … read more
Jake
Jake
308 satisfied customers
1995 Lexus es300 did not pass smog but I fixed minor air
1995 Lexus es300 did not pass smog but I fixed minor air leaks. … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,198 satisfied customers
My Lexus 300 has been a phenomenal car and well-maintained.
My Lexus 300 has been a phenomenal car and well-maintained. But the brake pedal began sticking about a year ago; since it does not do it all the time, no one can seem to fix it. When the brake is depr… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I am working on a 2001 Lexus GS300. The AC works perfectly
I am working on a 2001 Lexus GS300. The AC works perfectly above 900 RPM. The car idols at 750, there are no codes after 100+ miles. Everything functions properly except ac at idol. When the car stops… read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
593 satisfied customers
We have a 1999 Lexus GS300 that is still going strong;
second opinion] We have a 1999 Lexus GS300 that is still going strong; however lately there's a bit of an intermittent shimmying that I feel from time to time in the steering wheel. The pattern isn't … read more
HondaPlatinum
HondaPlatinum
High School or GED
148 satisfied customers
You mention checking these parts to troubleshoot the A/C
You mention checking these parts to troubleshoot the A/C issue. Wondering if you could help me with the locations/labels of the magnetic clutch fuse and horn clutch fuse. Here is the diagram from the … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
1,760 satisfied customers
I have a 2003 lexus, gx470. disconnected my battery. i have
i have a 2003 lexus, gx470. disconnected my battery. i have reconnected the battery. i have power but now the it does not start. is it the security system? … read more
Chris (aka - Moose)
Chris (aka - Moose)
Technician
Vocational, Technical or Trade School
315 satisfied customers
I have a 2003 Lexus ES300. The car will not start.When
I have a 2003 Lexus ES300. The car will not start.When turning the key on all lights inside and out (headlights, etc.) will come on, but the car will not crank. Checked the battery and it is fully cha… read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,198 satisfied customers
CD stacker on our 1929 Lexus LS400 showing "Error" and wont
CD stacker on our 1929 Lexus LS400 showing "Error" … read more
Gary
Gary
Senior Technician
Vocational, Technical or Trade School
91 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x