P0161
O2 Sensor Heater Circuit Bank 2 Sensor 2
1996-1996 Audi A6 2.8L V6
Low SeverityPowertrainGeneric (SAE)
The 1996 Audi A6 is equipped with a 2.8L V6 engine. Below you'll find detailed p0161 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Malfunction in the downstream O2 sensor heater on Bank 2.
Symptoms
- Check Engine Light
- Failed emissions
Common Causes
- Faulty heater
- Blown fuse
- Wiring issue
Diagnostic Steps
- Check fuse
- Test heater resistance
- Inspect wiring
Repair Notes
Replace sensor.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0161 on Other Vehicles
Common Questions
What does code P0161 mean on a 1996-1996 Audi A6?
P0161 stands for "O2 Sensor Heater Circuit Bank 2 Sensor 2". Malfunction in the downstream O2 sensor heater on Bank 2.
What are the symptoms of P0161 on a Audi A6?
Common symptoms of P0161 include: Check Engine Light, Failed emissions.
What causes P0161 on a 1996-1996 Audi A6?
Common causes of P0161 include: Faulty heater, Blown fuse, Wiring issue.
Last updated: March 2026