Q: Permanent DTC?
Does 2009 Toyota Sienna have permanent DTC?
My car has 140000 miles.
My car has an automatic transmission.
Hi there. It is possible that the 09 Sienna may have permanent codes. If it does, this is only for informational purposes for a qualified technician. These codes will clear themselves once a specified number of drive cycles without the same fault have been completed. If a check engine light returns shortly after a repair and the current code matches the permanent then the repair did not correct the condition that set the code. I hope this has helped you. Your Mechanic is available 7 days a week at your home or office. Feel free to schedule your next service at www.yourmechanic.com.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
Where do I find the vehicle identification number?
The vehicle identification number, or VIN, for your car gives a lot of information about the vehicle. You’ll also need it for titling purposes, for insurance and in many other situations. The information contained in the VIN includes where it...
Engine light staying on
Hi there. The Check Engine Light should stay illuminated until the vehicle is running. So, your light being on while cranking is normal. However, if the light was on before when the engine was running, diagnostic trouble codes may be...
Front lower control arm bushings loose
Suspension parts wear over time. The style of your driving, as well as the condition of the local roads, can have a significant effect on the amount of time it takes to wear. The suspension is one big system; it...
Steering is extremely tight. Moreso when not moving or moving slow. Rack and pinion was suposedly done
Hello. It sounds like something is mechanically binding and/or you are not getting full power assist. If it is mechanically binding, one cause would be defective strut bearing plates (top of strut in wheel well). You can evaluate that by...
I have a Chevy Colorado. DTC P0717. No input from trans input speed sensor. Need to know the circuit test procedure and sensor rep
Hello, I have provided a link below that will help you with your issue, if you click here (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-transmission-speed-sensor)
Wipers stopped working while driving in the rain.
Hi. The first thing to check is the fuse. If the fuse is good, you can use a test light to make sure there is power at the fuse and to the wiper motor. Simply touch the test light to...
My actuator works backwards
Hello. We will need to observe several other factors in order to pinpoint what the issue is. When you say you are turning on the vents, what setting are you turning on when this happens? Is it all temperature settings...
5.7l cuts out when you throttle the engine from a stop. Gets going sometime then hesitates. When it gets to 50 mph it runs fine.
Hi there. Check the IAC (https://www.yourmechanic.com/services/idle-control-valve-replacement) (idle air control valve) and see if its functioning. If the engine is having an issue with stumbling, the IAC could be causing the engine to stall out. If the IAC is working properly,...
My Honda security light is flashing on dash car will crank but won't start
Hi there. If the Security Indicator Light is on steady with the key in the "run" position, and the vehicle won’t start, there could be a fault with the system. In this case, the first thing to try is a...
Related articles
The Best Used Cars to Buy If You Live in a Tropical Climate
If If you live in a tropical climate, most of your vehicle purchasing concerns will be essentially the same as if you lived anywhere else – you want a car that looks good, offers decent gas mileage, and suits the...
Politics and Personal Driving Preferences: Do Republicans and Democrats Drive Different Cars?
Dodge Rams are the most popular car in Republican states; the Toyota Prius is the most popular in Democratic areas (as are hybrids and foreign cars).
Should I Buy a Honda Accord or a Toyota Camry?
The Honda Accord and Toyota Camry have been the best-selling cars for 20 years due to their quality and reliability. Find out which is best for you.
Browse other content
Services
Cities
Maintenance