there could literally be thousands of causes...most auto repair places will read the code and tell you what is wrong for free...
remove the efi fuse for 1 minute if the light comes back on you have a problem
Type your answer here... Hello how do you reset the check engine light on a 2003 Toyota 4runner. Thanks
http://www.extreme-check-engine-light-codes.com/Toyota%20OBD1%20Decoder.htm
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.
Problem with the emissions system.
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 would have code "pending" and a check engine light
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.
Have vehicle scanned to determine the problem
Sorry need a few more details. What model 4 runner do you have and what year? What is the engine size?
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
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