Question about Toyota Sienna

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My 2008 toyota sienna just had left front coil spring replaced. now the vsc, abs, and trac light are on and 2 different ecm'sn can't read anything. both computers say no connection found when they get right to the point where the codes should be, any ideas why?

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1 Answer

Take it back to whom ever did the work

They are no to be installing issues ,while
they take your money for the work you
authorized

We can't diagnose anything over the internet
without the vehicle

Posted on Mar 17, 2011

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Posted on Jan 02, 2017

dttech
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SOURCE: On my Toyota Sienna 2008, my check engine light,

On most Toyota's that are equipped with Cruise Control (Vehicle Speed Control or "VSC") and with Traction Control System (TCS or "Trac") all of these lights will come on at the same time if the Engine Control Module (ECM) determines that there is a fault in the engine management system that 1. Prevents the engine from being properly controlled. 2. Prevents the VSC from being properly controlled 3. Prevents the TCS from being properly controlled 4. Any combination of items 1,2, and 3.
Most of the time it is caused by a single fault in the engine management system. Fault codes are codes that are output by the ECM to let a diagnostician know which of the many systems, that are monitored by the ECM, is malfunctioning. To find out what the actual cause is, you must scan the ECM for fault codes then use this information to begin diagnosis of the system that the fault codes point to.

Posted on Jan 25, 2011

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On a 2004 toyota 4runner my check engine light, VSC light and my Trac Off light all came on at the same time, what is most commonly the cause?


The VSC and Traction system are basically using the ABS to work. The most common issue is a failure of one of the wheel sensors for ABS. Would think the engine light will probably turn out to be for ABS failure code. Most auto parts stores, and some shops will read codes for no charge - so take it and see if the code does show as a failure in ABS system. Some code readers can not read the actual ABS computer to give you a detailed code of what is causing the issue - but if you can read detailed code it may lead you to exact issue.

Mar 04, 2015 | 2004 Toyota 4Runner SR5

1 Answer

VSC TAC light and Engine Check light on


http://www.toyota-global.com/innovation/safety_technology/safety_technology/technology_file/active/vsc.html

Jul 21, 2014 | Toyota Sienna Cars & Trucks

1 Answer

Vsc trac off sienna 2009


use a code reader to reset the computer. The abs and the trac system use the same wheel sensors.

Sep 15, 2013 | 2009 Toyota Sienna

1 Answer

2008 Toyota Sienna - To the right of the speedometer the VSC and trac off light is staying on and to the left the engine light is staying on. Drove it back home 24 miles with no problem


I will assume you have no owners manual,no one does
& refuse to buy one

No one, after 30 years of having any kind of malfunction
indicator lamps on the dash ,of all vehicles, seems
to remember what they did last time they got one

VSC & Trac are to some extent part of your ABS Braking
System as well as stability control systems & on & on

So you check for any active codes that set those dash lights
You -- meaning a repair shop

Then diagnose the areas of the systems they point you to

Then come up with a solution ,only after component testing,
because you never replace any parts until you know how they
work & that they failed

Long story short,you can not work on todays vehicles anymore
The pros can barely do that

So your off to a repair shop or if you enjoy questionable
results and have lots of disposible income, a dealer will
be happy to ruin that experience

Sep 22, 2011 | 2008 Toyota Sienna

1 Answer

Just went to drive my 2008 Toyota Sienna and the Check Engine/VSC/Trac lights came on. Owner's Manual says take to dealer. I opened and screwed on my gas cap again, but when I started the engine the...


yes, but you will not have traction control available. The lights mean that trouble codes have been set. If you are worried about driving a long distance to a dealership, any major auto parts store will be able to read out the codes for free and even reset the lights if you wish.

Feb 05, 2011 | 2008 Toyota Sienna

2 Answers

On my Toyota Sienna 2008, my check engine light, Trac Off and VSC lights are one. Why? How do I fix it?


On most Toyota's that are equipped with Cruise Control (Vehicle Speed Control or "VSC") and with Traction Control System (TCS or "Trac") all of these lights will come on at the same time if the Engine Control Module (ECM) determines that there is a fault in the engine management system that 1. Prevents the engine from being properly controlled. 2. Prevents the VSC from being properly controlled 3. Prevents the TCS from being properly controlled 4. Any combination of items 1,2, and 3.
Most of the time it is caused by a single fault in the engine management system. Fault codes are codes that are output by the ECM to let a diagnostician know which of the many systems, that are monitored by the ECM, is malfunctioning. To find out what the actual cause is, you must scan the ECM for fault codes then use this information to begin diagnosis of the system that the fault codes point to.

Jan 25, 2011 | 2008 Toyota Sienna

1 Answer

03 toyota 4 runner vsc trac and trac off light are on, what´s the problem with?


VSC stands for vehicle stability control and trac is traction control they are incorporated into the ABS system all receive signals from the wheel sensors you must use a digital ohms meter to find the one reading different and replace it in some cases you might find bad connections at the plugs.in any case your brakes will work fine you just wont have ABS braking or traction control

Nov 13, 2010 | 2003 Toyota 4Runner

1 Answer

Vsc & trac off indicators


Have you scanned both the engine computer and the abs computer? Because it is an abs problem, likely a wheel speed sensor.

Mar 02, 2009 | 2001 Toyota Sienna

2 Answers

2004 toyota sienna engine and vsc light


well the check engine light on can mean many different issues its just a symbol telling you that your ecu (engine computer) has found an issue with your vehicle it is not a specific indicator of whats going on unless you get the codes pulled from your computer any autozone will pull the codes for free and some shops will also just call around they will not diagnose prob for free though it could be anything vacume leaks - o2 sensor bad ext....as far as your vsc being on most of the time when your check engine light comes on the vsc will light up also does not mean there is an issue with your vsc system....i work as a mechanic for a toyota dealer and see his all the time and check to make sure your gas cap is tight will set check eng and i see it all the time when custs forget to tighhten gas cap if its loose you can get the codes erased hope this helps!!!!

Jan 04, 2009 | 2004 Toyota Sienna

1 Answer

VSC and engine light on


The Trac light comes on automatically, in conjuction with the Check Engine Light. You need your vehicle scanned for DTC codes.

Aug 11, 2008 | 2008 Toyota Sienna

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