The electric cooling fan is controlled by the Engine Control Module (ECM) through the cooling fan relay based on inputs from the following components: - The engine coolant temperature (ECT) sensor. - The intake air temperature (IAT) sensor. - The A/C selector switch. - The A/C refrigerant pressure sensor.
Staff bags are big enough to hold everything a pro would need. In fact, they are usually designed after the custom golf bags pros use, so they are larger and heavier than regular golf stand bags. Staff bags are often made of leather and have large pockets. They have space for a full set of 14 golf clubs.
Your driver is generally the first club to make contact with the ball in a round of golf and is usually the only club in your bag (next to your putter) that you use on every hole except during par threes. With the right driver, it is a guarantee that any golfer will shave strokes off their game.