Question about 2004 Lexus LS 430

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2001 Lexus engine check light on VSC off light on

Had a problem with my 2001 lexus. VSC and check engin light on. Had car hooked up to a computer and got these codes....p0440 emission control malfunction.....p0441 perge flow fault.....p0446 vent circuit malfunction...how do i fix this problem

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  • 007kim Jan 27, 2009

    Had a problem with my 2001 lexus. VSC and check engin light on. Had car hooked up to a computer and got these codes....p0440 emission control malfunction.....p0441 perge flow fault.....p0446 vent circuit malfunction...how do i know what the code problems mean.

  • 007kim Jan 27, 2009

    Had a problem with my 2001 lexus. VSC and check engin light on. Had car hooked up to a computerand got these codes....p0440 emission control malfunction.....p0441 perge flow fault.....p0446 vent circuit malfunction...how do i fix this problem


  • lcarter56 Mar 14, 2009

    I have a 2001 Lexus LS 430. I changed the air filter to a K&N filter and after 30 mile later the check engin light came on. Had it checked for the code and was told bank 1 oxergin senser was out and had them clear the code to see if it would come back on. As i back out from the shop the VSC came on. They said they could not clear that code. I had the car for over a year and never had the lights on until i put the K&N filer on.

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You can actually google this by putting lexus code ### for each one it will tell you what each one means

Posted on Jan 27, 2009

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SOURCE: car codes

When you have P0440, P0441 and P0446, it is a very good bet that the fuel cap was loose, or the fuel cap rubber seal is compromised. You will get all three of those codes every time that the cap is loose. Always make sure that the fuel cap is as tight as you can get it after you refuel.

Posted on Nov 13, 2008

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My lexus GX 470 VSC TRAC VSC lights and check engine lights comes on and engine not firing well. What is the problem and possible solution ?


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On this make the warning lights all come on together, the check engine light is the cause of all.
Hello
When the service engine soon light (Also called the check engine light or engine management light) is turned on this is to alert you to the fact that Powertrain Control Module (computer) has detected a failure somewhere in the systems it controls you may not feel any difference in the way the engine runs, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.

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1 Answer

I have a 2003 lexus ls 430 my check engine light came on with the vsc off, and exclamtion mark all at the same time and I don't know what that means?


Hi there:
When this comes on as it has it means: When the center differential is locked, VSC control turns off and the VSC OFF indicator illuminates. This is straight from the Lexus diagnostic chart.

The system is faulted in some way so you will need to have the fault memory read out, and then depending on what fault code or codes are stored will determine the type of diagnosis that will need to be performed.

A dealer would be your best bet to get the cause determined. Their scan tool, when hooked up to you vehicle will give them all of the information they need to rectify your condition. After the scan results are found, replacement parts or adjustments can be performed.


Hope this helps.

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2 Answers

Why is my check engine light and VSC light on


The check engine light is drivability which affects emission and to protect the catalytic,when this light comes on VSC is disabled.This helps protect the catalytic.

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I have lexus ls430 2001 i hav prob with check vsc it show in dashbord i don't know wht's problem exactly . when i start the car rpm is down & there is shaking in engin ,also the a/c not cold...


Check your gas cap, it may not be sealing properly that's why your getting the VSC light on the dashboard. Eventualy the light will go out after you fix. Good luck.

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2 Answers

The VSC and Check engine light turn on for lexus 1999 the cood is p0500


Toyotas and Lexus cars have some unique feaures. If your fuel cap is loose or the O2 sensors on the exhaust are faulty this results in an emission problem and the engine computer unit (ECU) engages the check engine light and disables the VSC (the VSC light comes on to warn you that it has been disabled). However you have p0500 code which says the car has no speed sensor signal. The seed sensor is located on the side of the final drive from the transmission and its job is to measure the speed of rotation of the output shaft. The ECU will compare the signals from this shaft along with the speed sensors in the wheel hubs. If there is a difference between these signals the VSC is engaged to apply braking effort to which ever wheel is slipping (running faster) than the other or that the transmission speed sensor would warrant.
So you either have an emission fault has fed back to the VSC and speed sensor missing (p0500) condition, or you have a faulty sped sensor which has tripped the VSC light and in turn the CEL.
Check your fuel filler cap is on tight, turn radio off and disconnect the negative lead to the battery for 5 minutes (this should clear the ECU memory of the code error). If p0500 error and CEL and VSC lights come back on then check the electrical connection to the speed sensor. Ensure it is clean and making a good contact, check the wiring for continuity. If everything else looks good consider changing the speed sensor.

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1 Answer

Lexus gs300 vsc check engine light gas pedal no acceleration


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I have a 2003 lexus gs 300..the check engine light came on and the VSC OFF traction control came on and it stays on...i tried to turn if off, but the light just stays on


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