Honda B121B: Short in the Mode Control Motor Circuit
Is your scanner showing Honda B121B?
No worries. We'll show you what it means and how to deal with it.
Honda B121B: Short in the Mode Control Motor Circuit
OVERVIEWWhat Does The Honda B121B Code Mean?
A malfunction in the mode control motor was detected.
NOTE: Perform the self-diagnostic function with the HDS or climate control unit.
What Are The Potential Causes Of The Honda B121B Code?
- Loose wires or poor connections on the mode control motor circuit
- “Short” to body ground
- “Short” to power
- Faulty mode control motor
- Faulty climate control unit and
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
>>> CrocSee 250 Pieces - Car Fuses Assortment Kit
>>> 06-11 Civic Heater Air Blend Door Actuator
>>> Dorman Remanufactured Climate Control Module
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Honda B121B, DTCDECODE.
