Skip the auto shop - Our mechanics make house calls

Q: Engine light is on+ VSC Trac lights

asked by on

I own a 2005 Toyota 4Runner sport edition.for the past 3 month I've been traveling across the country towing a 4000 Ibs travel trailer.Ive had installed a brake system in my car to control the brakes better and to ease all this weight off my car brakes pads. The car is running great.the only thing is the engine brake light is on and also the VSC Trac lights. I need to get the car troughs emission test,and as they told me,it will fail because of the engine light is on. I've read a lot of reviews that says it could be the gas cap,and I know I should do coad diagnostic,but only the diagnostic check cost a could I illuminate what's causing the problem?the car is running real good,I think there is something loose with the electricity,and I don't know anyone reliable that I can talk to and make sure no one will make me do unnecessary work that could cost me more then it should be or make more damage. What should I do?

My car has 160 miles.
My car has an automatic transmission.

A: The "VSC Trac light on" problem i...

The "VSC Trac light on" problem is related to a software problem with the yaw rate sensors calibration. This is documented in Toyota Technical Service Bulletin TSB #BR005-03, which your Toyota service center can apply to re-calibrate this sensor. [Note: There are also a number of threads on the Internet for the competent DIYr to reset this yourself.] Most auto parts stores will read your problem codes (Check Engine light on) for free on a "time-available basis". This will guide you to the specific problems that are preventing a "Pass" on your emissions testing. If this service is unavailable to you, I would recommend having YourMechanic perform a Check Engine light diagnosis for these issues, provide an accurate assessment of damage, and estimate the cost of repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Noise from rear axle

Hello. Differential problems usually present themselves through abnormal noises. It is best to have a technician take off the rear differential cover and inspect the internals for defects. If you need further assistance, I recommend you have a mechanic, like...

Q: Battery light is on, car won't start

Hi, thanks for writing in. I'd be happy to help. This is a common issue when the starter relay is failing. This is a unit that directs power from the battery to the starter. When this is failing, this will...

Q: Coil replacement - 2010 BMW 335i

Unfortunately, there is not enough information here to properly diagnose as a rumbling sound coming from an engine (especially a high performance engine) is somewhat normal in many cases. The service engine light could be on for many reasons. I...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.