P1731 1-2 Shift Malfunction
What does P1731 mean on a Ford?
P1731 — 1-2 Shift Malfunction. This Ford-enhanced code applies to F-150, Explorer, Ranger with electronic automatics.
Common causes of P1731
- Worn 1-2 shift components
- Failing 1-2 shift solenoid
- Low line pressure
- Valve body wear in the 1-2 circuit
- Low fluid level
How to fix P1731
- Check fluid level and condition
- Monitor the 1-2 shift with speed data
- Test the 1-2 solenoid
- Check line pressure
- Service the valve body or solenoid per findings