Severity: Fix right away. Driving risks expensive damage or a breakdown.
The computer found a fault in the circuit that switches the cooling fan on, so the fan may not run when the engine gets hot.
Check the fan fuse and relay, then test the fan motor.
If the fan does not run, the engine can overheat in traffic. Watch the temperature gauge closely and do not drive far.
Avoid driving until it is checked — towing is the safer choice. If the fan does not run, the engine can overheat in traffic. Watch the temperature gauge closely and do not drive far.
The most common causes are: Failed cooling fan relay; Failed cooling fan motor; Damaged wiring or connector; Blown fuse. A scan tool and a visual check of the parts above is where a technician starts.
Check the fan fuse and relay, then test the fan motor.