Pull the codes from the computer, match the code to the troubleshooting procedure, follow the procedure to find the source. Repair the source, light will go out if that was the only problem. There are "monitors" or self tests the computer runs the car through a drive cycle, if a problem occurs, it may not run all of the self tests until that problem is taken care. Therefore, another problem may exist. It is emission related. OR hook up a scanner that is capable of clearing codes, and hope that none are still active. Disconnecting the battery can create other headaches and will not likely solve your dilemma. Best bet is to contact the local snap-on dealer and have him refer you to a known good shop that specializes in this technology-he will know. The " check engine light" is by far one of the most misunderstood technological advances by the public. This is an needed in-depth understanding for the public. It is a warning light that is illuminated when there is a problem affecting the EMISSION SYSTEM only. Emission system being the pollution control system. Don't get a hard on against it as it is a good thing once you understand it. One point that was brought up a a recent meeting of technicians was that the amount of hydrocarbons is greater when the gas cap is left off than when the engine is running. Hydrocarbons are part of pollution emitted as gasoline evaporates. Going a step farther, one facet of the emission system is the "Evaporative" portion. This is when the fumes from the gasoline are leaking from the system into the outside air. This is one part of the emission system that can trigger a check engine light. I would say that about 7% of the vehicles that have a check engine light are the result of a loose or inadequate gas cap. But understand that many scenarios are possible with the "check engine light" The vehicle's powertrain computer (note that some vehicles have 17 different computers) will run a series of self-tests. They will only run under certain criteria. And they can be vastly different from manufacturer to manufacturer. Some self-tests are not run until preceding ones have run successfully. So if there is a problem in one particular area that is preventing another self test from running, you can have a situation where one problem is fixed, but another still exists. If you fix a problem and drive the car through a drive cycle that sets the monitor (or self test) the light will go off as it passes that criteria that triggered it in the first place. After 1996, the auto industry went to a idea called OBD II (on board diagnostics). This was to get all the manufacturers onto a similar plane for troubleshooting and powertrain control. While they still differ vastly, many corrections and adaptations were made for technicians to better fix the check engine light problems. Prior to this there were so many different and poor troubleshooting data from a check engine light problem that resolving the problem was much more difficult. Many early warning light of this nature were set to illuminate based on mileage. An Oxygen sensor was one of the things that were meant to be replaced when that mileage was hit. This is much like many current "Change oil lights
'Engine Airbag Code Reset Tool Vauxhall Meriva Zafira
How to reset airbag light
That is not how you reset the check engine light. That trick can only be used to reset the airbag light (something I have had to do often). Reseting the CEL involves doing specific maneuvers with the screw on the ECU. Check out SR20forum.com
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You reset the check engine light with a scan tool after repairing the failure.
The check engine light has to be reset with a OBD scan tool
on most vehicles if you disconnect the battery cables it will reset the check engine light
hoe do you reset the check engine light in a 1995 land rover
how do i reset the check engine light on a 1999 acura 3.2tl
The check engine light is reset with a scan tool after repairing the cause of the fault.The check engine light is reset with a scan tool after repairing the cause of the fault.
You will first need to check that the airbag has been properly set up. Then you can go into your settings and get it all reset.
The check engine light comes on in a car when there is a problem with the engine. It will go off or be reset when the problem is fixed.
There is no reset button for the check engine light. It must be reset with an OBD scan tool.
Airbag light can only be reset using diagnostic equipment.
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You need a scan tool to properly reset the check engine light.
How do you reset check engine light for the 2009 Chevy trail blazer?
The check engine light can be reset two ways. 1) If the problem resolves itself, the check engine light will reset itself after a certain amount of cold starts of the car on the on board computer system. 2) You need an OBD reader that has the reset check engine light capability.
To reset the check engine light on a 1998 Honda Civic located the blue 15 amp fuse in the engine bay fuse box. The fuse is labeled ECU, and will reset the check engine light when removed.
The check engine light has nothing to do with an oil change. The check engine light is reset with a scan tool after repairing the failure that caused it.
Reset the Check Engine Light by disconnecting the battery for about 10 minutes.
It is important to make sure the check engine light is not on when having a car inspected. A person can reset the check engine light by clearing the codes that are causing the light to go on.
To reset the airbag warning light on a Volvo V40, you must take the vehicle to the dealer. The dealer will check the airbags and turn off the light using a specific tool.
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