Blend Door Actuator Circuit - Driver Side
1995-2005 Pontiac Sunfire 2.2L 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
Pontiac Aztek
2001-2005 3.4L V6
Pontiac Bonneville
1990-1999 3.8L V6
Pontiac Bonneville
2000-2005 3.8L V6
Pontiac Bonneville GXP
2000-2005 4.6L V8
Pontiac Bonneville GXP
2000-2005 4.6L V8 Northstar
Pontiac Bonneville SSEi
1992-1999 3.8L Supercharged V6
Pontiac Bonneville SSEi
1992-1999 3.8L V6 Supercharged
Pontiac Firebird
1993-1997 3.4L V6
Common Questions
What does code B0622 mean on a 1995-2005 Pontiac Sunfire?
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 Pontiac Sunfire?
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 1995-2005 Pontiac Sunfire?
Common causes of B0622 include: Faulty blend door actuator motor, Blend door binding or broken, Actuator gear stripped, Wiring issue, HVAC control module fault.