Acura B2187: Communication Line (UART Line) Driver's MPCS Unit cannot send UART messages.
Is your scanner showing Acura B2187?
No worries. We'll show you what it means and how to deal with it.
Acura B2187: Communication Line (UART Line) Driver's MPCS Unit cannot send UART messages.
OVERVIEWWhat Does The Acura B2187 Code Mean?
This code indicates Communication Line error.
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A. Perform Front Passenger’s MPCS unit input test.
What Are The Potential Causes Of The Acura B2187 Code?
Below are some potential causes of this DTC:
- “Short” to ground
- Faulty Moonroof Control Unit/Motor
- 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 B2187, DTCDECODE.
