Trayson - I was able to clear a code (misfire). There are two modes to clear a code - normal and alt. I had to go though the advanced setup to change to alt. After that, it cleared the code no problem. I have a 2014 Malibu 23 LSV with a 5.7L Indmar engine. Hope that helps. Jay
Trayson - It will work on MEFI5 and the Scanguage D is able to read and clear codes according to the manual. I just got a Scanguage D and made the connector suggested above. I haven't had a chance to test it out (I need to clear a code) but once I do, I'll let you know how it goes. Not sure about pulling engine hours.