20 Most Recent 2012 Toyota Corolla L Sedan 1.8L 4-cyl. 5-speed Manual Questions & Answers

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.

2012 Toyota... | Answered on Sep 23, 2017

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.

2012 Toyota... | Answered on Oct 02, 2016

it is still under warranty ??? take it to dealer to fix.

2012 Toyota... | Answered on Feb 04, 2015

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.

2012 Toyota... | Answered on Dec 02, 2014

take it to a parts house that will clear the codes then se if you still get it I have gotten bad parts befor

2012 Toyota... | Answered on Aug 20, 2014

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

2012 Toyota... | Answered on Jul 16, 2014

If the engine doesn't start, how do you know it misses?

2012 Toyota... | Answered on Apr 20, 2014

if the cores are blocked the the only fix is to replace it with a new one . C heck first that the heater controls and the hoses are working and clean.

2012 Toyota... | Answered on Apr 03, 2014

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.

2012 Toyota... | Answered on Dec 06, 2012

You need to replace the engine control computer in most cases to clear this code. The part is about $1000.00 so have it confirmed by the dealer before running out an getting a computer.

Toyota Corolla... | Answered on Oct 25, 2019

Can you hear a click at the starter when you turn the key? If so then you may have a bad starter. If you do not, then check to see if there are 12 volts at the starter large wire. If not, check battery connections and voltage. If you, check to see if the small wire gets 12 volts when the key is turned to start. If no, check the relay and neutral safety switch. Feed 12 volts to small wire. If you hear a click, change the starter.

Toyota Corolla... | Answered on Oct 03, 2019

Have you checked for fault codes and is the exhaust restricted at all. ......

Toyota Corolla... | Answered on Sep 30, 2019

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