Blend Door Actuator Circuit - Driver Side
2007-2012 Nissan Altima 2.5L I4
Description
Malfunction in the driver side blend door (temperature mix) actuator. The blend door controls the mix of hot and cold air.
Symptoms
- Driver side blows only hot or only cold air
- Temperature does not change with control adjustment
- Clicking noise from behind dashboard
- Inconsistent temperature delivery
Common Causes
- Faulty blend door actuator motor
- Blend door binding or broken
- Actuator gear stripped
- Wiring issue
- HVAC control module fault
Diagnostic Steps
- Listen for actuator operation when changing temp
- Test actuator with direct power
- Check actuator gears for stripping
- Inspect blend door for binding
- Scan HVAC module for codes
Repair Notes
Replace blend door actuator. If door is broken, dash removal may be required for door replacement.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
B0622 on Other Vehicles
Nissan 200SX
1995-1998 1.6L I4 GA16DE
Nissan 200SX SE-R
1995-1998 2.0L I4 SR20DE
Nissan 240SX
1995-1998 2.4L I4 KA24DE
Nissan 300ZX
1990-1996 3.0L V6 VG30DE
Nissan 300ZX Twin Turbo
1990-1996 3.0L Twin-Turbo V6 VG30DETT
Nissan 350Z
2003-2006 3.5L V6 VQ35DE
Nissan 350Z
2007-2009 3.5L V6 VQ35HR
Nissan 370Z
2009-2020 3.7L V6 VQ37VHR
Common Questions
What does code B0622 mean on a 2007-2012 Nissan Altima?
B0622 stands for "Blend Door Actuator Circuit - Driver Side". Malfunction in the driver side blend door (temperature mix) actuator. The blend door controls the mix of hot and cold air.
What are the symptoms of B0622 on a Nissan Altima?
Common symptoms of B0622 include: Driver side blows only hot or only cold air, Temperature does not change with control adjustment, Clicking noise from behind dashboard, Inconsistent temperature delivery.
What causes B0622 on a 2007-2012 Nissan Altima?
Common causes of B0622 include: Faulty blend door actuator motor, Blend door binding or broken, Actuator gear stripped, Wiring issue, HVAC control module fault.