P2254 Buick Oxygen (O2) Sensor Negative Current Control Circuit / Open (Bank 2 – Sensor 1)

P2255 Buick Oxygen (O2) Sensor Negative Current Control Circuit Low (Bank 2 – Sensor 1)

OBD Code:
System:
Subsystem:

P2255 Buick – (ASE)
Powertrain
Fuel and Air Metering

Trouble Code Description: Oxygen (O2) Sensor Negative Current Control Circuit Low (Bank 2 – Sensor 1)

Location:
Analysis:

Possible Causes:

Oxygen Sensor – Bank 2 – Sensor 1
End of Range – Circuit Lower Than Expected

Tech description:

Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera