Using a code reader to find out why a ‘Check Engine’ light is activated

I connect a Code Reader to a vehicles Data Link Connector to find which trouble codes are activated. We then look up the codes to see what they mean

[@404notfound.....]

Great video!! If that's the Dodge 300 looks like the 02 sensors are lazy. Those are lean codes. Il bet it's not switching.

[@backyardmech]

It's a 2007 300 - and i agree 404 !