Blower Motor Resistor & Control Module – Key Features at a Glance
Blower motor resistors and electronic control modules regulate fan speed in vehicle HVAC systems.
Two types:
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Resistor‑based – uses series resistors to drop voltage; provides 3–4 fixed speeds. Generates heat, needs cooling fins; prone to thermal failure.
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Electronic module – uses PWM (pulse‑width modulation) for infinitely variable, smooth speed control. More efficient, with built‑in overcurrent, overheat, and short‑circuit protection.
Common features: compact design, plug‑and‑play connectors, integrated thermal fuse (resistor type), and diagnostic capability (module type). Operating voltage: 12V (24V for trucks); temperature range: –40°C to +85°C.
Failure signs: fan only works on highest speed (resistor burned out) or no speed variation at all (module failed).
Applications: passenger cars, commercial vehicles, and aftermarket replacements – essential for cabin comfort and defogging.
Blow Resistor|OE:12135105,,89018436DORMAN:973-006 973-406|Model:Chevrolet Astro 2005-96, GMC Safari 2005-96
Blow Resistor|OE:5189134AA,68004539AADORMAN:973-521 973-233|Model:Dodge 2010-03
Blow Resistor|OE:68004241AA,4720278,5012212AA,,DORMAN:973-020 973-421 |Model:Dodge 2002-94, Jeep 1999-93
Blow Resistor|OE:79330SR3A01DORMAN:973-211 973-460 |Model:Honda Civic 1998-92, Honda Civic del Sol 1997-93
Blow Resistor|OE:79335TF0G01DORMAN:973-549 |Model:Honda Fit 2013-09 Fit
Blow Resistor|OE:15373437,15415789,22807121,84019100,84049100,89018439,89018604,89019100DORMAN:973-008 973-410 |Model:Buick 2007-04, Chevrolet 2009-02, GMC 2009-02, Oldsmobile 2004-02
Blow Resistor|OE:15305077,22807122,89019089,89018597DORMAN:973-004 973-409 |Model:Cadillac 2005-02, Chevrolet 2007-99, GMC 2007-99
