P0495
PowertrainCooling Fanlow severityCooling Fan Speed High
What P0495 Means
The PCM has detected that the cooling fan speed is higher than expected. Excessive fan speed may indicate a control fault or sensor issue.
Symptoms
- Fan running constantly at high speed
- Excessive fan noise
- Warning lamp on
Common Causes
- Faulty fan control module
- Faulty coolant temperature sensor
- Damaged wiring or connector
- Faulty PCM
Diagnostic Steps
- Scan for stored codes
- Monitor fan speed and coolant temp data
- Inspect fan control wiring
- Test fan module and sensors
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Community Confirmed Fixes
No confirmed fixes yet for this code. Be the first to contribute!
Submit a FixFound a Fix for P0495?
Help other technicians by sharing what worked on your vehicle.
Submit Your Fix