Technical Definition:
Heated Oxygen Sensor (HO2S) Heater Control Circuit (Bank 2 – Sensor 2)
Trouble Code: P0056
Address: 0x0056
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Address: 0x0056
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:
Possible Causes:
Possible Symptoms:
HO2S Heater Control Circuit Bank 2 Sensor 2
Possible Solutions:
OBD-II Trouble Code Type:
Diagnostic Step:
Tech Notes:
– Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2
– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 harness is open shorted
– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit poor electrical connection
– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit fuse
– Faulty Engine Control Module (ECM)