P0481 Code: Cooling Fan 2 Control Circuit Malfunction
🟠 Moderate severity · drivable
Drivable, but the secondary cooling fan may not run, which can cause overheating under load — fix it soon.
What P0481 means
There's an electrical fault in the control circuit for the secondary engine cooling fan (the fan that handles higher cooling demand, often with A/C on).
Symptoms
- Check engine light is on
- Engine overheating under load or with A/C on
- Secondary cooling fan not running
Common causes
- most common: Faulty cooling fan relay or module
- common: Failing cooling fan motor
- common: Damaged wiring or blown fuse
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Check the fuse and replace the cooling fan relay | Yes | $10–60 |
| Replace a failing cooling fan motor | Yes | $150–400 |
| Repair damaged fan wiring | Mechanic | $50–150 |
Frequently asked questions
Can I drive with a P0481 code?
Yes, but watch the temperature gauge, especially with A/C on or heavy loads.
What is the most common cause of P0481?
A faulty cooling fan relay or module.
How much does it cost to fix a P0481?
$10–$60 for a relay, or $150–$400 for a fan motor.
Related codes
P0480
P0480 Code: Cooling Fan 1 Control Circuit Malfunction
P0482P0482 Code: Fan 3 Control Circuit Malfunction
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.