answersLogoWhite

0


Best Answer

I have a 2003 Highlander. Whenever I get the oil changed, the check engine light comes on within a couple of days. I finally figured out that there is a hose under the air filter case that gets disconnected when the filter is checked. Just reattach the hose and the light will reset after a few restarts of the engine.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What causes Toyota Highlander check engine light?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Will the check engine light on a Toyota Highlander come on when the coolant level is low?

It is possible that a check engine light on a Toyota Highlander will come on if the coolant level is low. Usually, though, there is another light that will come on that says 'low coolant' on some older Toyota's.


Trac off VSC check engine light on Toyota highlander?

Check your brake (stop) light fuse


Toyota highlander 2002 check engine light?

Have vehicle scanned to determine the problem - usually in the emission control system,


Engine check light on 2002 Toyota Highlander?

Have vehicle scanned to determine the problem - usually in the emission control system,


2001 Toyota Highlander check engine light reset?

start with engine off. press and hold that speedometer resetter while starting engine, check engine light will flash a few times then disappear.


What causes the check engine light to come on in a Toyota Sienna?

Low fluid levels in engine.


What causes check engine light in Toyota raum?

Problem with the emissions system.


What causes the check engine light to come on a 2003 toyota highlander?

The ECU has detected a problem with the emissions system. Have the ECU scanned with an OBD2 scan tool to retrieve the code that has been set. This code will tell you where to start looking for the problem.


How do you reset the check engine light in a Toyota Highlander?

Go call the Toyota car company or headquarters and ask the people who made the car.


How ro reset engine check light for highlander 2003?

To reset a check engine light for a Highlander 2003, disconnect the battery for 10 minutes. After this time, reconnect the cables.


Where is thermostat on 2002 Toyota Highlander 4-cylinder?

For the Highlander 4 cylinders, it is on the Alternator side. To replace it, you have to take the alternator out and unscrew two bolds . Unless the engine is rebuilt, thermostat only replaced, most likely, when you rebuild the engine. check cooling tank and water hose leak first.


What causes the check engine light to come on in a 1996 Toyota Paseo?

It could be anything, but the most common problem is the O2 sensor.