QX56 V8-5.6L (VK56DE) (2004)
Rear Blower Motor
Check that there are no foreign particles inside the intake unit. Apply 12 volts to terminal 2 and ground to terminal 1 and ensure that the blower motor
rotates freely and quietly.
Rear Blower Motor Resistor
Check continuity between terminals. There will be resistance, but there should not be an open or short between any two terminals.