K Tahoe 4WD V8-4.8L VIN V (2000)
maintained. At high speeds, the on time may be 10 percent and the off time may be 90 percent. At low speeds, and with high electrical loads, the on/off
time may be 90 percent and 10 percent respectively.
The regulator has four terminals- P, L, I, and S. On all P applications, P, L, I/F, and S is stamped on the regulator.
The L terminal turns on the regulator and allows field current flow when the switch is closed. The L terminal must connect through an indicator lamp or a
suitable resistor.
The F terminal is used to monitor the duty cycle and is used with an engine speed boost at idle.
The P terminal connects internally to the stator and may be wired to a tachometer or other device. The S terminal may be used to "sense" voltage at
another location on the vehicle for voltage control. If the S terminal is not used, the generator will use an integrated circuit in the regulator to "sense"
voltage.
P model vehicles use a voltmeter in place of an indicator lamp. For schematics of the specific generator circuits, refer to Starting and Charging
Schematics.
