Need help urgently

[CLS78]

guys,

My Lexus IS250 was running and able to moved....but when turning, the steering wheel became really heavy and almost impossible to turn...Now my car is stuck in some MRT parking lot under a bright light....Anyone might know the reason or cause? is it the power steering pump or the slipping belt are at fault? cheers!

 

[6UE5t]

Any indicator showing in the dash? Got few possibilities:
- Power steering motor spoiled
- Some sensors related to the VSC is spoiled, for example the yaw sensor (this had happened to one of our Mark X club member. IS250 & Mark X is basically the same FYI).

 

[CLS78]

surprisingly there was no indication or something on the instrument cluster...that was why it puzzled me