⚠
warning Innova
Error Code P0133
HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
? What Causes This
Faulty oxygen sensor or wiring to heater circuit.
✓ How to Fix It
Replace faulty oxygen sensor at bank 1 and check wiring connections for proper function.
Source: page 48 of the official manual
From the manual
This error code appears in:
Innova 3100 OBD2 Code Reader