DTC 16421

SAE VAG Description
P0037 16421 HO2S Heater Control Circuit Low Bank 1 Sensor 2

Oxygen sensor and oxygen sensor control behind catalytic converter
- Oxygen sensor and oxygen sensor regulation behind catalytic converter, checking Oxygen Sensor and Sensor Regulation Behind Catalyst, Checking

Oxygen sensor heater for oxygen sensor behind catalytic converter
- Oxygen sensor heater for oxygen sensor behind catalytic converter, checking Oxygen Sensor Heater Behind Catalyst, Checking