Answer - I have a 2012 Toyota Sequoia and the Check Engine light came on and then the Trac Off light came on. The car felt like it was in 4 wheel drive. I read around and found two things that I had to do to get the car fixed.
(1) Clean the gas cap, lubricate the "O" ring around the gas cap, and read the gas cap. It has to click at least once. Make sure there is no gunk around the gas nozzle as well so that the cap and nozzle get a tight seal.
(2) I unscrewed the battery cables positive then negative. I let them be disconnected for 10 minutes. I returned connected the battery and both warning lights were now off and car was back to normal (other than having to reset clocks, radio, etc).
Note: I did notice that the car at first did not idle as it did beforehand. It took a few minutes of me driving around the neighborhood and then the idling returned to normal. Hope this helps.
Daniel
B279A, Theft deterrent system, communication line high fixation.
Probable causes:
- Loose connection in harness wiring or connectors.
- Transponder key ecu assembly.
- ECM.
I advice you to please contact the qualified service personnel.
The headlight globe usually just twists out of the back of the headlight assembly. When fitting the new globe,use a cloth or glove. Don't touch any part of the globe with bare hands as the oily film will cause the new globe to fail very quickly.
Take to a local repair shop
What have you done from the day you first owned
any vehicle & had no idea what to do or how to fix it?
When any fuse blows it does so for a reason
I personally, seldom try a new fuse & never
more than one--why would you,fuses do not
make for a fix,you have to find the short or current
overload & they are very rare,nothing like the epidemic
spread on the internet in the last several years
People install new fuses when the old ones are perfectly good
Half the people answering questions here, would have you replacing
all sorts of relays,if you have one bad relay in 50 years that is a lot
You need to have the dealer look at this, if you fool around with it you can void your warranty. Toyota looks for any legal excuse to void the warranty.
Question edited for clarity and add CAPS.Question moved from Misc category.The best way is to get a local auto electrician to use a pro grade scan tool and check for DTCs and the components of the ignition system, particularly sensors. Did you disconnect the battery before this problem occurred?The most likely culprits are issues with the ignition system components like the ignition coil, spark plugs, spark plug wires, distributor cap, or rotor, which could be faulty, worn out, or have damaged connections; you should also check the ignition system (ECU) fuses and the crankshaft position sensor as potential causes for the lack of spark. ..
