Same way the heater on your truck works... coolant is run through the engine system, becomes heated, is run through a heater coil, and a blower blows the heated air around the heater coil through the ductwork to heat up the vehicle.
The code you are probally getting it a ALT code which is a alternator code... check voltage coming out if the alternator and also make sure all the wires on the back of the alt are in good condition and tight
Apu comes from India.
Apu was born in India
Apu
Apu Nahasapeemapetilon http://en.wikipedia.org/wiki/Apu_Nahasapeemapetilon
The World of Apu was created in 1959.
Apu - magazine - was created in 1933.
apu does in his last name: nahasapeemapetalan
James Woods
The duration of The World of Apu is 1.78 hours.
His full name is Apu Nahasapeemapetilon.
Apu Nahasapeemapetilon.