Severity: Fix soon. Usually safe to drive for now.
The computer found a fault in the circuit for the check-engine light itself, so the light may not come on when it should.
Check the bulb and the instrument cluster wiring.
Safe to drive, but you will not get a warning light if something else goes wrong.
Generally safe to drive, but get it checked soon. Safe to drive, but you will not get a warning light if something else goes wrong.
The most common causes are: Burned-out check-engine bulb; Damaged wiring; Failed instrument cluster; Failing engine computer. A scan tool and a visual check of the parts above is where a technician starts.
Check the bulb and the instrument cluster wiring.
