07 lexus rx 350 with check engine light code p0304
07 lexus rx 350 with check engine light : first time pulled code p0356,also has VSC lite on,clear code, swap coil #6 to #5,after 20mile driving lite come back with code p0304 with freeze frame info and p0301 p0302 p0303 p0305 p0306 and p0354, vehicle shaking at time only on freeway around 60 to 75 mph ... Thanks for help...
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It likely had water on the ignition system. The check engine light will flash for misfire. The VSC light is on just because the check engine light is on. You likely have it dried out now and its fine. You just need to clear the codes. Autozone will do this for free.
If you have MIL get the codes scanned, at least they will help point you at the real cause of the problem. For the moment ignore the VSC warning until the MIL has been successfully diagnosed and cured. Nine times out of ten curing the MIL will resolve the VSC warning.
I'm not sure about the Lexus, but Nissan and other vehicles with the VSC usually will be on until you can drive on a straight road for approximately 2-3 miles without stops and about the same speed during the reset process. The interstate or some type of hwy will reset this light once the vehicle has learned the Vehicle Stabilization Control in which is learned by the way you drive and enables the car to have stable control. Hope this helps out, if this doesn't work, I would take it in for more diagnostics.