What does code P1405 mean on Toyota vehicles?
The ECU detects an electrical fault in the turbocharger boost pressure sensor circuit, affecting boost monitoring accuracy.
OBD-II Code Toyota
P1405 — Toyota — Turbo Pressure Sensor Circuit Malfunction
The ECU detects an electrical fault in the turbocharger boost pressure sensor circuit, affecting boost monitoring accuracy.
Common symptoms
- Loss of boost
- poor acceleration
- reduced engine performance
Possible causes
- Faulty boost pressure sensor
- damaged wiring
- corroded connector
- power or ground issues
Initial recommendation
Test boost pressure sensor signal and inspect wiring and connectors.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Toyota code P1405 with your vehicle's actual symptoms for more complete diagnostic guidance.
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