What does code P1466 mean on BMW vehicles?
The ECU detects implausible temperature readings from the heated catalyst power switch temperature sensor.
OBD-II Code BMW
P1466 — BMW — Heated Catalyst Power Switch Temperature Sensor Plausibility
The ECU detects implausible temperature readings from the heated catalyst power switch temperature sensor.
Common symptoms
- Check engine light illuminated
Possible causes
- Faulty temperature sensor
- incorrect sensor signal
Initial recommendation
Perform heated catalyst system diagnostics and verify temperature sensor operation.
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 BMW code P1466 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands