P2231

SAE VAG Description
P2231 18663 O2 Sensor Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 1

Oxygen sensor and oxygen sensor control before catalytic converter
Oxygen sensor and oxygen sensor control before catalytic converter, checking [1][2]Oxygen Sensor Before Catalyst, Checking

Oxygen sensor heater for oxygen sensor before Three Way Catalytic Converter (TWC)
Oxygen sensor heater for oxygen sensor before Three Way Catalytic Converter (TWC), checking Heater Check