What does this button do?

[Beeb]

Hi all,

I'm trying to figure out what some of the switches on my bus do. Can anyone help? It's a 2001 International...um... something or other. I forget the model. If I need that for you to answer, I'll go get that.

I've attached pictures, and labeled the switches. Some of them are self-explanatory, but others I'm not too clear on. I also meant to take a picture of all the gauges on the dash so someone could tell me what all the dials mean, but I forgot, so I'll add that later. There is one filter monitor thing I labeled in the picture below. I'm wondering what that means. Also, I'm wondering what "Driver Stepwell" means. Anyway... see pictures below!

[family wagon]

Best guesses:
B= clearance lamps. Those are the 5 amber across the top front of the bus, the 5 red across the top at the rear, a mix of amber and red along the sides.
C= white strobe light(s) mounted on the centerline of the roof toward the front and/or rear.
E= vacuum gauge. It measures the restriction to airflow, ie the dirtyness, of the engine air filter.
I= a pump that boosts circulation of coolant from engines to body heaters. It'll probably give more heat output from the heaters with this pump turned on.
J= two-speed switch for the blower on a heater under the seats somewhere.

When in doubt: start the engine, flip a switch, and walk around looking and listening inside and out to figure out what changed.

[o1marc]

Drivers step well would be courtesy lamps.
If you use the big round mirrors you can see all the lights on the front of the bus work.

[Johnny Mullet]

Family wagon and 01marc pretty much covered all the bases for you there. I see you have an air filter monitor, but it's best to do a visual inspection of the engine air cleaner.

[o1marc]

Originally Posted by Johnny Mullet

Family wagon and 01marc pretty much covered all the bases for you there. I see you have an air filter monitor, but it's best to do a visual inspection of the engine air cleaner.

While this is true, if you see a rapid change in the air cleaner gauge you'll know where to start looking for the power loss.
I'm glad mine has that gauge.

[ol trunt]

Push the button and see where the smoke comes from--------------. Jack