It is on because the ECU has detected a problem with the emissions system. Have the system scanned with an OBD2 scan tool to retrieve the code that has been set. This code will tell you what part of the system is being effected. Not necessarily the defective part but what part is being effected.
how to discontect the engine light on a 2001 toyota camery ?
To turn off the check engine light on a 1999 Toyota Camry you can disconnect the battery. This will only reset the check engine light. So if there is a persistant problem with the engine, the light is likely going to stay on. To turn off the check engine light on a 1999 Toyota Camry you can disconnect the battery. This will only reset the check engine light. So if there is a persistant problem with the engine, the light is likely going to stay on.
you will go to the toyota dearler it good pleace
how to reset oil timing on 1990 toyota
The computer has detected a fault with one of the electronic components and is warning you to run a diagnostic test.
You have to find the reason why it came on.
You didn't say what engine you have? Check the link and it will tell you.
Go to----- http://www.extreme-check-engine-light-codes.com/Toyota%20OBD1%20Decoder.htm---- for this info
ABS, check engine.
lift the bonnet hey presto
One word answer: YES
Just disconnect the battery for couple minutes.