Body · B codes · 33 codes
Climate control (HVAC)
Blend and mode doors, blowers, A/C sensors, heated seats and rear defrost.
Codes in this group
33
Generic SAE codes · OBDex
Rated urgent
0%
0 codes · our rating
DIY-friendly
85%
28 codes · per OBDex
Typical labor
$65–$375
Median hours × $125/hr · est.
01 —Full list
All 33 codes
Grouped by the first three characters of the code.
B01xx
11 codes
- B0150HVAC Mode Door Range/Performance
- B0156Sun Load Sensor Circuit
- B0162Sun Load Sensor 2 Circuit
- B0166HVAC Discharge Air Temperature Sensor
- B0168HVAC Air Mix Door Performance
- B0170HVAC Mode Door Position Sensor
- B0173HVAC Air Inlet Door
- B0175HVAC Recirculation Door Performance
- B0181Front Blower Motor Circuit Low
- B0184Rear Blower Motor Circuit
- B0186Front Blower Motor Speed Performance
B02xx
12 codes
- B0205HVAC Defroster Door Position
- B0250HVAC Air Temperature Internal Sensor Circuit
- B0255HVAC Air Temperature External Sensor Circuit
- B0258HVAC Air Mix Door 1 Circuit
- B0263HVAC Air Mix Door 2 Circuit
- B0268HVAC Mode Door 1 Circuit
- B0273HVAC Recirculation Door Circuit
- B0278HVAC Defrost Door Circuit
- B0283HVAC Blower Motor Circuit
- B0288HVAC A/C Pressure Sensor Circuit
- B0290Rear Defrost Switch Circuit
- B0292HVAC A/C Compressor Clutch Circuit
B03xx
8 codes
B06xx
1 code
B09xx
1 code
Code data: OBDex (CC0) · severity bars are our rating (low · moderate · urgent)
02 —More