Famous 2012 Ford Focus Check Engine Light References. Open the panel covering the input jack and plug in the scanner. Once the check engine light shows up, you know there’s something you must address.
Consumer writes in regard to illuminated check engine light. I had a scan run and it gave a code p144a. Whereas a steady check engine light may mean you merely need to tighten you gas cap next time you stop in order to reset the service.
