⚡ AUTO CODE FIX
🔍
EngineModerate✅ DIY Friendly

P0481

Cooling Fan 2 Control Circuit

Fault in the secondary cooling fan circuit. Many vehicles have two-speed fans or two separate fans.

SeverityModerate
CategoryEngine
Est. Repair Cost$50–$400
Code TypePowertrain
DIY RepairYes

⚡ Common Causes

⚠️ Symptoms

✅ How to Fix — Step by Step

  • Step 1:Check secondary fan relay and fuse
  • Step 2:Test second fan motor
  • Step 3:Inspect wiring
  • Step 4:Replace relay or motor
💡 Pro Tip: The secondary cooling fan often runs with the A/C compressor — verify it operates when A/C is turned on.

Repair Cost Estimate

Full Repair Estimate
$50–$400
DIY Possible?
YES
Severity
Moderate

Frequently Asked Questions

What does OBD2 code P0481 mean?+
P0481 stands for Cooling Fan 2 Control Circuit. Fault in the secondary cooling fan circuit. Many vehicles have two-speed fans or two separate fans.
What causes code P0481?+
Failed secondary fan relay; Wiring fault; Failed secondary fan motor; ECU driver fault
How do I fix code P0481?+
Check secondary fan relay and fuse; Test second fan motor; Inspect wiring; Replace relay or motor
How much does it cost to fix P0481?+
Estimated repair cost for P0481 is $50–$400.
Is P0481 DIY-friendly?+
Yes — P0481 is generally DIY-friendly with basic tools.

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