Acura B2181: Driver's Door Lock Knob Switch LOCK/UNLOCK Signal Error
Is your scanner showing Acura B2181?
No worries. We'll show you what it means and how to deal with it.
Acura B2181: Driver's Door Lock Knob Switch LOCK/UNLOCK Signal Error
OVERVIEWWhat Does The Acura B2181 Code Mean?
This code indicates Driver’s Door Lock Knob Switch malfunction.
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
What Are The Potential Causes Of The Acura B2181 Code?
Below are some potential causes of this DTC:
- Check for loose or poor connections
- “Open” or “Short” condition between the Driver’s Door Lock Knob Switch and the Driver’s MPCS unit
- Faulty Driver’s Door Lock Knob Switch; replace the driver’s door lock actuator assembly
- Faulty Driver’s MPCS unit
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> KAIWEETS Digital Multimeter
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Acura B2181, DTCDECODE.
