The check engine light on your 2013 Ford Focus will usually shut itself off if the issue or code that caused it to turn on is repaired. For example, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will turn itself off. Likewise, if your catalytic converter is going persuasive, and you did
The next step is to see if the engine temperature sensor is working correctly. If you have a scan tool with live data, check the engine temperature when the engine is cold, it should be close to outside temperature. Drive a car for 10 minutes and check the engine temperature again, it should be close to 180-220°F or 82-105°C. See the photo.
Ford Focus 2013, “transmission fault service now” message and p0606 code after battery died. The engine code went away - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. There are many potential causes of code P0456. Loose or damaged gas cap. Leaking or disconnected EVAP hose. Faulty purge volume control valve. Faulty canister vent control valve. Charcoal canister leak. Leaking fuel tank. P0456 is not one of the top 5 trouble codes for the Ford Focus but, it is still a common one.The code that I'm getting is U012D. I have gotten the wiring harness done along time ago. Sounds to me like the battery monitoring sensor is unplugged or defective. Check and see is the two pin connector is plugged into the sensor on the negative battery post. If it is, it's likely that the sensor has gone bad.Unbolt it from the bodywork and remove any rust or paint. put some vaseline (petroleum jelly) on the cable terminal and tighten firmly back on to the body. Check and clean both battery terminals and leads. Make sure they are tight and the clamps don't slip round on the battery posts. TAHHeSu.