P1405 Turbo Pressure Sensor Circuit (Diesel)
What does P1405 mean on a Toyota?
P1405 — Turbo Pressure Sensor Circuit (Diesel). This Toyota-enhanced code applies to Hilux, Land Cruiser Prado with D-4D turbo diesel.
Common causes of P1405
- Failed turbo pressure sensor
- Open or shorted sensor circuit
- Blocked sensor hose
- Soot-fouled sensor port
- Corroded connector
How to fix P1405
- Inspect the sensor hose for blockage
- Clean soot from the sensor port
- Test sensor output against boost
- Check circuit wiring
- Replace the sensor per test data