KlaroP0064
MODERATEHO2S Heater Control Circuit High (Bank 2 Sensor 3)
What this code means
HO2S Heater Control Circuit High (Bank 2 Sensor 3). This family covers the measurement of incoming air and injected fuel, together with the emission devices attached to them. A fault here distorts the mixture the engine burns, which costs fuel and raises emissions.
How to read this code
- PPowertrain
- 0standardised code
- 0Fuel and air metering, auxiliary emission controls
- 64P0064
The letter P names the system: Powertrain. The digit 0 that follows marks a standardised code, shared by all manufacturers code. The next digit, 0, locates the fault: fuel and air metering, auxiliary emission controls.
What to do
Have it checked this week. The car remains usable, but the fault will not clear itself and will fail the roadworthiness test.
Clearing a code switches the light off but repairs nothing: if the fault remains, the code comes back.
Nearby codes
- P0060HO2S Heater Resistance (Bank 2 Sensor 2)
- P0061HO2S Heater Resistance (Bank 2 Sensor 3)
- P0062HO2S Heater Control Circuit (Bank 2 Sensor 3)
- P0063HO2S Heater Control Circuit Low (Bank 2 Sensor 3)
- P0065Air Assisted Injector Control Range/Performance
- P0066Air Assisted Injector Control Circuit or Circuit Low
- P0067Air Assisted Injector Control Circuit High
- P0068MAP/MAF Throttle Position Correlation