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if your Toyota suddenly flashes the
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check engine light VSC light and track
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off light all at once don't panic you're
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definitely not alone and it's usually
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not as bad as it looks these lights
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often come on together and it can feel
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overwhelming but most of the time it's
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something you can diagnose and sometimes
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even fix right in your
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driveway i'm Tom from Car Justify and I
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found that the Toyota and Lexus owners
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see this combo a lot and once you
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understand why it happens it's way less
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with all right let's break it down when
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those three lights pop on together the
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car is basically telling you "Hey
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something isn't right in the engine or
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emission system so I'm going to shut
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down a few other features just to be
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safe." The VSC which stands for vehicle
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stability control and the traction
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control system both depend on the engine
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running properly so when the engine
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control unit or ECU senses a problem it
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disables those systems as a
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precaution now the most common cause a
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loose or cracked gas cap seriously if
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you recently filled up your tank double
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check that the cap clicks several times
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when you tighten it a poor seal can
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trigger an emissions error which lights
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up the check engine then shuts off
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traction and stability control as a side
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effect it's a 5-second fix but you'd be
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surprised how often that's all it
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takes if that doesn't do it the next
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step is to scan for codes using an OBD
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scanner that's on board diagnostics you
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can pick one up for cheap or borrow one
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from a part store plug it in under the
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dash turn the key to the on position and
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look up whatever code comes up a lot of
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the time especially in Toyotas you'll
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see codes related to a faulty oxygen
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sensor or a mass air flow sensor those
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are common wear items and usually easy
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to swap out with basic
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tools another one to watch for is the
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EVAP system that's the evaporative
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emission system if a valve or hose in
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that system is cracked or clogged it can
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trigger the same combo of warning lights
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it's a bit more involved to trace but
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it's not hard to visually inspect the
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lines under the hood for damage or
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and sometimes it's just a dirty throttle
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body if your car is idling rough or
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hesitating when you hit the gas that
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could be the culprit a little throttle
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body cleaner and a soft brush can go a
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long way just take off the air intake
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tube and gently clean around the
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butterfly valve no need to go overboard
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just enough to remove the carbon
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buildup once you've fixed whatever
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caused the issue you can either clear
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the codes with the OBD scanner or just
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drive the car for a bit if the problem's
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really fixed the lights usually turn off
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trips so to recap check that gas cap
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scan for codes look into common sensors
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inspect the EVAP system and don't
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overlook throttle body cleaning start
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simple be patient and you'll save
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yourself a ton of time and money if this
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helped you out give the video a thumbs
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up and hit subscribe i post tips like
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this all the time to help folks keep
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their cars running strong see you in the
