The power steering fan shared the same electrical circuit as the radiator fan until January 2003.
This meant that if road debris jammed the power steering fan causing the common fuse to blow, the radiator fan would not operate and the engine would overheat.
Putting the power steering fan on a separate electrical circuit was covered under warranty per Service Bulletin M320104.
The power steering fan was unprotected by a grille until October 2003 .
For protection many owners added an aftermarket shroud like the stainless steel one shown below:
