PTO Speed Selector Sensor/Switch 1 Circuit Intermittent/Erratic
The PTO speed selector signal jumps or drops out — usually a worn rotary contact or vibration on the work attachment.
Affected components
- Pto speed selector 1
Common causes
- High likelihood: Worn rotary contact
- Low likelihood: Connector with intermittent contact under vibration
- Low likelihood: Harness routed against vibrating component
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.