Hi Ramsascooby,
I today bought a Lexus Rx400h 2008 model and after driving back when I bought last night , after doing 250 miles it suddenly showed the code when I was driving on the highway the fault code check Hybrid system with Vsc and Check AWd.
So I checked It is POA45 with OBD and cleared it too after that it has not come back as yet after doing 100 miles .
When I Start the engine it gives constant humming noise tone for about 30 seconds and then stops , which I believe is coming from the back of the car
the car drives all fine , I'm worried now what could be the problem , please help!!!