PTO Sense Circuit Range/Performance
The PTO sense circuit is electrically intact, but the engagement feedback does not match the command. The ECM requests engage and sees no engaged feedback (or vice versa) within the expected time window — drive-line slip, sticky clutch, or a mis-adjusted limit switch.
Affected components
- Pto clutch
- Pto limit switch
Common causes
- High likelihood: Sticky or worn PTO clutch
- Medium likelihood: Mis-adjusted limit switch
- Low likelihood: Sensor element aged beyond calibration window
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
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.