P2243

SAE VAG Description
P2243 18675 O2 Sensor Reference Voltage Circuit/Open 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 catalytic converter
Oxygen sensor heater for oxygen sensor before Three Way Catalytic Converter (TWC), checking Heater Check