

Drive with caution — fix soon.
This code means the engine computer detected a fault in the control circuit for the third cooling fan, often on vehicles with multiple fans for the engine and air conditioning. It usually points to a bad fan relay, a damaged wire or connector, or a failing fan motor. It's typically fixable without major engine work, and catching it early helps prevent overheating.
$120 – $450
Varies by vehicle and root cause.
For short trips, usually yes, but keep an eye on your temperature gauge. The danger comes in slow traffic or at idle when the fan is needed most. If the engine starts overheating, stop driving and let it cool to avoid serious damage.
Most repairs run between $120 and $450. A simple relay or fuse replacement is on the low end, while a new fan motor or wiring repair costs more. Diagnostic time is usually included or added separately.
It's moderately serious. On its own it won't strand you, but a fan that won't run properly can lead to overheating, and an overheated engine can cause expensive damage. Get it checked soon.
The affected fan often helps cool the AC condenser too. When it doesn't run at idle, the AC can't shed heat well, so air feels warm when you're stopped but improves once you're moving and air flows through the radiator.