What does code P0485 mean?
A malfunction is detected in the power supply or ground circuit of the cooling fan.
OBD-II Code
P0485 — Cooling Fan Power/Ground Circuit Malfunction
A malfunction is detected in the power supply or ground circuit of the cooling fan.
Common symptoms
- Cooling fan does not activate
- rapid temperature rise
Possible causes
- Poor ground connection
- broken wire
- loose or faulty fuse
Initial recommendation
Inspect ground points, direct power supply and fuse integrity.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0485 with your vehicle's actual symptoms for more complete diagnostic guidance.
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