Awasome 2005 Vw Passat Tdi Check Engine Light References. It indicates that there is a failure in the way the engine works, specifically in the exhaust system. If it’s red, pull off the road safely—then stop the engine and call for roadside assistance.

Web there are hundreds of reasons why the check engine warning fault light comes on, and only your dealer or mechanic is qualified to address this. This may also highlight an issue with your transmission. High input code 00568 turbocharger boost sensor a circuit hight input if you have any of the code p0238 or code 00568 on vw.