OBD-II code · manufacturer-specific
B1850
Climate Control Temperature Differential Circuit Open
- System
- B — Body electronics
- Severity
- Low (1/5)
- Can I keep driving?
- Usually safe to drive
What does B1850 mean?
B1850 is defined as “Climate Control Temperature Differential Circuit Open”.
You can usually keep driving, but have it checked soon so a small fault doesn’t become a bigger one.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Mercedes: Electric seat adjustment front right: CAN communication interrupted with DCM
Related codes
- B1849Climate Control Temperature Differential Circuit Failure
- B1851Climate Control Temperature Differential Circuit Short To Battery
- B1852Climate Control Temperature Differential Circuit Short To Ground
- B1853Climate Control Air Temperature Internal Sensor Motor Circuit Failure
- B1854Climate Control Air Temperature Internal Sensor Motor Circuit Open
- B1855Climate Control Air Temperature Internal Sensor Motor Circuit Short To Battery
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.