Fan 2 Underspeed
Cooling fan 2 runs below the calibrated minimum speed for the commanded duty. Mechanical resistance high or motor weakened.
Affected components
- Cooling fan 2
Common causes
- High likelihood: Fan motor bearing worn
- Medium likelihood: Supply voltage low under load
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.