List Of Check Engine Light 2012 Equinox References. If you notice that your check engine light is always on, take your in vehicle in for service and request that they check the engine control unit. Web what does the check engine light of your equinox mean?

Repairpal will help you figure out whether it's your emissions system, sensor, catalytic converter, or something else. In some vehicles, the light comes in two colors: Learn more and save 67%.
