RAM 2500 Truck 4WD V10-8.0L VIN W (1997)
Blower Motor Resistor: Testing and Inspection
Fig 40 Blower Motor Resistor -- Typical
To test the blower motor resistor, unplug the resistor wire harness connector. Each blower motor switch input terminal on the resistor must have
continuity to the resistor output terminal, which is connected to the circuit going to the blower motor. If the blower motor resistor continuity does not
check OK, replace the faulty resistor.
