Maxima V6-2960cc 3.0L SOHC MFI (VG30E) (1990)
Potentio Balance Resistor (PBR): Description and Operation
Potentio Balance Resistor
Air Mix Door Motor Location (With Built-In PBR)
The Potentio Balance Resistor (PBR) is a feedback potentiometer that provides information to the Auto Amplifier on door position.