Acura B1002: Multiplex Integrated Control Unit (MICU) Internal Error

Is your scanner showing Acura B1002?
No worries. We'll show you what it means and how to deal with it.

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OBD Codex, Administrator

Acura B1002: Multiplex Integrated Control Unit (MICU) Internal Error

DIY Difficulty Level
Repair Cost
Can I Still Drive?

What Does The Acura B1002 Code Mean?

PCM or F-CAN loss of communication, B-CAN loss of communication.

What Are The Potential Causes Of The Acura B1002 Code?

  • Faulty battery or charging system
  • PCM or F-CAN loss of communication errors
  • Poor connections or loose pins at all connectors related to the circuit.
  • ”Open” and/or ”short” related to the circuits.

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
>>> Acura Engine Control Module

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Accessories & Equipment Multiplex Integrated Control System Service Manual for B1002 – 2004 Acura TSX, page 40.

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