the car is due for maintenance
a lot of newer cars judge with different sensors for oil changes and whatnot
you need to take it to a dealer to reset the light on some cars
others you have to disconnect the battery for 10 seconds or so
Or, you have an O2 sensor that has gone bad.
Inactive or stored codes are things that have happened in the past but are not currently a problem. Active codes are things that turn on the check engine light and are wrong now.
You need to check your engine. The computer has detected a problem with the engine management system and the light is letting you know that is has error codes stored.
If the abs and check engine lights are on there is a problem. Both computers should have codes stored in there memories. Have the codes read. You can then diagnose the cause.
It means you're supposed to use a computer code scanner to find out what computer codes have been stored.
Have vehicle scanned to determine problem and stored codes if any
Check Engine lights ALWAYS mean that the computer has detected a problem and you should use a code scanner to read the stored codes and figure out what's wrong.
You can disconnect the battery for about 5 minutes and this will clear the check engine codes stored in the computer. If the problem that caused the code has not been repaired the check engine code will just happen again. The only way to get the check engine light to not be on is to repair the problem then clear the codes.
If you are referring to fault codes stored by the ECU (computer), they are codes indication what part of the vehicle has a problem and what part is being effected by the problem. It can be an emissions problem, transmission problem, or other problem.
autozone will do it for you for free.
YES, It sure can if that is the problem. FIRST you need to have the engine scanned with a OBDII engine scanner to see what CODES the computer has stored.
The stored code (pending code) does not affect the cars operation but if there is a problem with the vehicle then it is sure that it will affect the car's performance. The ECM stores the fault codes that it is programmed to do so even if it happened once during the operation. there is definitely a problem on the vehicle if the check engine light is on continuously or intermittently during the operation
The check engine light is on because there is a problem with the system. Until that problem is fixed it will stay on. Drive to your local auto parts store and they can read the code(s) stored in the vehicles computer for zip. The codes will help direct you to what the problem may be.