P0135

SAE VAG Description
P0135 16519 O2 Sensor Heater Circuit Bank 1 Sensor 1

G39 - Heated Oxygen Sensor (HO2S)

- Oxygen Sensor (O2S) aging bank 1 sensor 1 checking. Oxygen Sensor Aging Check
- Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC) checking. Oxygen Sensor and O2S Control Before Catalyst, Checking

Z19 - Oxygen Sensor (O2S) Heater

- Oxygen Sensor (O2S) heater before TWC checking. Oxygen Sensor Heater Before Catalyst