Heater fan

2003 HYUNDAI SANTA FE
128,000 MILES • 1.7L • 6 CYL • TURBO • 2WD • AUTOMATIC
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FERNAND BOULAY
  • MEMBER
  • 1 POST
Fan runs on high at all time.
Nov 15, 2018 at 1:53 PM
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ASEMASTER6371
  • ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good morning.

The most common cause for this issue is a shorted to power blower resistor for the blower motor.

I attached the procedure and a wiring diagram for the resistor for you below.

Roy

Replacement
1. Remove the negative (-) battery terminal

Glove Box
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2. After opening the glove box, pull it downward by pressing the both side of glove box inward.

Side Cover Of Crash Pad
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3. Remove the lower side cover of the crash pad.

Upper Cover Of Glove Box
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4. Remove the upper cover of the glove box.

Bolt Locations
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5. Loosen the bolts of glove box.

Blower Resistor (Manual)
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6. Disconnect the blower heater resistor connector (A).
7. Loosen the resistor fixing screw and remove the resistor.

Caution: Use the short length positive (+) screwdriver to remove the screw

8. Replace the resistor with a new one.
9. Reinstallation is the reverse order of the removal.
Nov 16, 2018 at 6:03 AM
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Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.