CHECK ENGINE Light Functionality
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CHECK ENGINE light is located in instrument cluster and is amber colored. CHECK ENGINE light functions in one of 3 modes:
- Bulb Check
With ignition-on, CHECK ENGINE light is illuminated for a short duration as a bulb check. If this does not occur, check wiring, bulb, and associated fuse. - Detection Of Certain Concerns
CHECK ENGINE light is used to indicate that one of certain concerns has been detected by PCM or IDM. Only those concerns which result in a change in power output available from engine will cause CHECK ENGINE light to be illuminated. Examples of such concerns are:- Injector low side short to ground - PCM will turn off 4 of the cylinders to prevent engine damage.
- Accelerator pedal sensor out of range - PCM will allow engine to idle only.