My left shoe If you would like a serious answer please include the multiple choice list.
King pin axis
The headlight is not a part of the emissions system.
no
It's part of the steering.
Dunnage
A power steering pump is an essential part of the steering mechanism of your car. This is run directly from the engine (via a pulley system) and provides the hydraulic power for the steering system.
Yes and No. As far as the steering column no, that is part of the chassis electrical system. The ignition is part of the power train.
Control module
rack and pinion
datasheets
pcv valve