B0661low severityBody
Rear HVAC Temperature Control Circuit
on 2014 Audi A6 3.0L Supercharged V6 · AWD
What this code means
Malfunction in the rear HVAC temperature control actuator or circuit.
Symptoms
- Rear climate stuck on hot or cold
- Rear temperature not adjusting
- Clicking from rear HVAC unit
Common causes
- Faulty rear blend door actuator
- Rear HVAC control module fault
- Wiring issue
- Blend door binding
Diagnostic steps
- Test rear blend door actuator
- Check rear HVAC control module
- Inspect wiring
- Scan for rear HVAC codes
Repair notes
Replace rear blend door actuator or rear HVAC control module.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0005
Driver Knee Airbag Deployment Circuit