What does it mean?
B1946 is a Body (airbags, seat belts, body electronics) fault code. It indicates: Climate Control A/C Post Evaporator Sensor Circuit Failure.
Climate Control A/C Post Evaporator Sensor Circuit Failure
Severity
Low
Can I keep driving?
Usually drivable; have it fixed at the first opportunity.
How is this code read?
This is a standard OBD-II code; any basic scanner reads it on vehicles built after 2004.
- BBody
- 1Manufacturer-specific
- 9Body
- 46Sequence number
Codes From the Same System
All Fault Codes- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Driver Frontal Stage 3 Deployment Control
- B0004Driver Knee Bolster Deployment Control
- B0005Collapsible Steering Column Deployment Control
- B0010Passenger Frontal Stage 1 Deployment Control
- B0011Passenger Frontal Stage 2 Deployment Control
- B0012Passenger Frontal Stage 3 Deployment Control
Related Similar Codes
- B1941Air Bag Crash Sensor #1 Feed/Return Circuit Open
- B1942Air Bag Crash Sensor #2 Feed/Return Circuit Open
- B1943Air Bag Crash Sensor #1 Ground Circuit Short To Ground
- B1944Air Bag Crash Sensor #1 Ground Circuit Open
- B1945Air Bag Crash Sensor #2 Ground Circuit Open
- B1947Climate Control A/C Post Evaporator Sensor Circuit Short To Ground
- B1948Climate Control Water Temperature Sensor Circuit Failure
- B1949Climate Control Water Temperature Sensor Circuit Short To Ground
This information follows the generic OBD-II definition and does not replace a vehicle-specific diagnosis. The severity rating is rule-based; an authorised diagnostic reading is required for a definitive answer.