Review Of 2005 Civic Check Engine Light References. Web if your check engine light is on but can’t see any codes, it’s most likely due to having the wrong scanner or one that is incompatible with your vehicle. Some common issues are o2 sensors, evaporative emissions leaks, a loose gas cap, a misfire, spark plugs, low coolant, etc.
Honda city helped make these videos. There could also be an electrical short or blown fuse causing the light to come on for no reason. Let the engine cool, and put on rubber gloves.
