P1781 Shift Lever Switch Malfunction
What does P1781 mean on a Toyota?
P1781 — Shift Lever Switch Malfunction. This Toyota-enhanced code applies to Camry, Corolla, RAV4.
Common causes of P1781
- Failed shift lever position switch
- Worn shift gate contacts
- Open switch circuit
- Spilled drinks corroding the switch
- TCM input fault
How to fix P1781
- Test switch outputs in each gate position
- Inspect for spill contamination
- Check circuit wiring
- Verify TCM sees lever changes
- Replace the switch per test data