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 AutoZone 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.
Over heating engine or engine check light ?
If your engine light comes on and your temp gauge is lower then normal. listen for cooling fans. if they are also running chances are you need a new thermostat
550 km astra, 99
Check the brake light switch. It is defective or out of adjustment.
It is the body control module It always starts out sparadic then you will get a service engine soon light and a service light !!
why do check engine light comes on
We could only hear their voices intermittently. The light shone intermittently through the clouds.
The light is on because there is a fault somewher. To turn the light of you fix the fault.
toyota estima/lucia have a common fault with the waste-gate actuator playing up.
What have you done so far? Have you checked the brake fluid level?
The engine light is essentially a warning indicator that something is wrong with the vehicle. Each engine light has it's own meaning and severity.
Blocked cat convertor or cam sensor. If it is the cam sensor the orange engine light should be on. If there is no engine light on its probably the cat convertor.