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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
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Check engine light in 2004 Toyota Tacoma?
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.
2005 Toyota Tacoma check engine light?
um yeah it does have one
How do you reset the check engine light on a 2002 Toyota Tacoma?
Have vehicle scanned to determine the problem
How do you reset the check engine light on a 1999 Toyota Tacoma?
After the repair, you reset it with an OBD2 scan tool.
Check engine light 1998 Toyota tacoma?
This could mean any number of things. I have a 98 Tacoma and the "check engine" light has only come on once in 8 years ... and that was because I didn't have a gas cap at the time!
Reset check engine light on a 2001 Toyota tacoma after oil change?
The Check Engine Light has nothing to do with oil changes. It is on because there is a problem with the emissions system.
Reset the check engine light on a 1995 Toyota Tacoma?
take postive side of battery off then put back on
What would cause a 1998 Toyota tacoma engine to run sluggish?
check for tune-up, check maf sensor, check o2 sensors, do a fuel system service.
How do you turn off the check engine light on a 1995 Toyota Tacoma?
You read the codes with a scanner, repair the cause, and clear the code with the scanner.
Where would you find a thermostat diagram for a 1999 Toyota Tacoma?
You should check your Toyota Tacoma's owners manual. There should be a diagram for the location of your thermostat.
Why doesn't the Check Engine light go off after I replaced the gas cap on a2008 Toyota Tacoma?
How do you know the gas cap is responsible for the Check Engine light? The computer will have to be cleared by a repair shop with a scanner.
How do you turn off the check engine light on 2003 Toyota Tacoma?
Repair the problem that turned it on and then clear the code with an OBD2 scanner/code reader
