Vehicle Buffered Power
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2003 Mercury Sable, 2003 Mercury Mountaineer, 2003 Mercury Marauder, 2003 Mercury Grand Marquis, and 2003 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Vehicle Buffered Power (VBPWR) is a PCM supplied power source that supplies regulated voltage (10-14 volts) to Vistronic Drive Fan (VDF) Fan Speed Sensor (FANSS) under normal operating conditions. It regulates to VPWR minus 1.5 volts, and voltage output is limited to protect sensor. For additional VDF clutch information, see VISTRONIC DRIVE FAN under OUTPUT SIGNALS.