P1818 Shift Control Solenoid Circuit Malfunction
What does P1818 mean on a Toyota?
P1818 — Shift Control Solenoid Circuit Malfunction. This Toyota-enhanced code applies to Camry, Corolla, RAV4.
Common causes of P1818
- Open shift control circuit
- Shorted solenoid winding
- Corroded transmission connector
- Blown transmission fuse
- TCM driver fault
How to fix P1818
- Check transmission fuses
- Test solenoid resistance and circuit
- Inspect the transmission connector
- Verify TCM command
- Repair wiring or replace the solenoid