The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
The check engine light on a Toyota Tercel can come on for a variety of reasons. It can be come on whenever there is a problem with the engine that needs attention. To reset it, disconnect the battery for a few minutes then re-connect it.
Check engine lights will not turn off in a vehicle until they are reset. To reset the light on a 1994 Toyota Tercel pull the ECU fuse.
The check engine light in a 2004 Toyota Tacoma can come on for many reasons. It could indicate an exhaust leak or a problem with the engine.
Did you check your starter?
Check your Toyota owner"s manual, if it show you yes , then do it!
The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, a check engine light is lit when there is a problem in the emissions or somthing that is affecting the effectiveness of the emissions. If the check engine light is flashing a misfire has been detected
use an OBD-I code reader.
It is probably your EGR valve causing the check engine light. I recently bought a used 1997 Toyota Celica and had this exact problem. The new valve cost approximately $85 and fixed the problem right away.
The same place you check the transmission fluid. Make sure the engine is warm and do not overfill. A funnel is a must.
Is this a trick question? My answer is "there is no problem". It Depends on the code that will detrmined what the problem was. or what ever you fix it with was the problem
If the check engine light is blinking that means an engine cylinder misfire has been detected
There are thousands of reasons. You need to pull out error codes. You can do it at local autozone store.