Acura B1064: Relay Control Module Lost Communication With Driver's MPCS Unit (DOORSW Message)
Is your scanner showing Acura B1064?
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Acura B1064: Relay Control Module Lost Communication With Driver's MPCS Unit (DOORSW Message)
OVERVIEWWhat Does The Acura B1064 Code Mean?
Poor communication between the Relay Control Module and the Driver’s MPCS Unit. 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 B1064 Code?
- Loose or poor connections between the Relay Control Module and the Driver’s MPCS Unit
- Blown fuse in the main under-hood fuse box
- Blown fuse in the under-dash fuse/relay box
- “Open” or “Short” to ground at the Relay Control Unit
- “Open” or “Short” to ground at the Driver’s MPCS Unit
- Faulty Relay Control Unit
- 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:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Acura Under-dash Fuse/Relay Box
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Acura B1064, DTCDECODE.
