The on board diagnostics system and engine control unit are in charge of monitoring a bunch of different parameters and if they get a reading that s a little out of whack up pops the check engine light.
What does check engine light usually mean.
One thing that can really throw us for a loop is when the check engine light comes on in our vehicles.
A person can still drive a car even if the check engine light is on without experiencing any kind of problem but it is better to get the car checked as a glowing check engine light is not a good sign.
There are many reasons as to why it s on and they usually aren t a huge problem.
A steady light means there s no immediate cause for alarm but you should still get it checked out.
However it does not replace a skilled mechanic or routine maintenance.
A flashing check engine light indicates that your vehicle s engine is in serious trouble whereas a steadily lit one means less urgent service is needed.
A blinking light or in some cars a red light instead of a yellow or orange.
If the check engine light is flashing or blinking that usually indicates a misfire or other serious issue that requires prompt repair and should be dealt with quickly at an auto repair shop.
Regardless it s easy to find out what the issue is and taking care of it quickly can save you money and prevent further damage down to the road.
When your car s check engine light illuminates your dashboard it s usually accompanied by a sinking feeling in the pit of your stomach.
Head to an auto parts store and have them run a diagnostic to find the cause of the check.
Glowing check engine light does not usually indicate an emergency but one should never ignore it for a longer time.
If the check engine light illuminates it will either blink or remain constantly illuminated depending on the problem.
3 reasons why your volkswagen check engine light is on by product expert posted in tips and tricks vw service on friday july 14th 2017 at 4 13 pm.
The light could be a minor issue such as a faulty gas cap.