Mazda B12A5: Mode Door Actuator, Feedback Circuit Open or Shorted to Battery Voltage
Is your scanner showing Mazda B12A5?
No worries. We'll show you what it means and how to deal with it.
Mazda B12A5: Mode Door Actuator, Feedback Circuit Open or Shorted to Battery Voltage
OVERVIEWWhat Does The Mazda B12A5 Code Mean?
The module senses no voltage drop on the actuator feedback circuit, indicating an open or short to voltage.
What Are The Potential Causes Of The Mazda B12A5 Code?
- Wiring, terminals or connectors
- Mode door actuator
- EMTC module
- Stuck or damaged linkage or door
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Mazda A-Premium HVAC Heater Blend Door Actuator
>>> Cx-9 Heater Control
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Mazda B12A5, DTCDECODE.
