P0482 — Cooling Fan 2 Control Circuit Malfunction
Drive with caution — fix soon.
What P0482 means
This code means the engine computer detected a problem in the control circuit for cooling fan 2, the secondary fan that helps cool the engine and A/C. It usually points to a failed fan motor, faulty relay, blown fuse, or wiring issues in the fan circuit. It's commonly fixed by replacing the relay, fan motor, or repairing the wiring.
Common symptoms
- Check engine light is on
- Engine running hotter than normal
- Second cooling fan not turning on
- A/C performance drops at idle
- Temperature gauge climbing in traffic
Common causes
- Failed secondary cooling fan motor
- Faulty fan relay
- Blown fuse in the fan 2 circuit
- Damaged wiring or corroded connector
- Failed fan control module
Typical repair cost
$150 – $700
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0482 code?
Short highway trips in cool weather are usually fine, but the second fan matters most in traffic and at idle. Watch your temperature gauge and pull over if it climbs. Repair it soon to avoid overheating.
How much does it cost to fix a P0482 code?
Expect roughly $150 to $700. A relay or fuse is cheap, while replacing the fan motor or control module costs more, plus labor depending on your vehicle.
Is a P0482 code serious?
It can be if the fan stays off, since the engine can overheat in slow traffic. With one fan still working you may be okay short term, but it's best fixed promptly.
What does cooling fan 2 do?
It's the secondary cooling fan that adds extra airflow over the radiator, often kicking in during high heat, heavy A/C use, or slow traffic. When its circuit fails, cooling capacity drops and this code sets.