Acura B1001: Multiplex Integrated Control Unit (MICU) Internal Error

Is your scanner showing Acura B1001?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Acura B1001: Multiplex Integrated Control Unit (MICU) Internal Error

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$75-$200
Can I Still Drive?
:
Yes

What Does The Acura B1001 Code Mean?

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

What Are The Potential Causes Of The Acura B1001 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.
  • MICU Internal (CPU)
  • PCM

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
>>> 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

Accessories & Equipment Multiplex Integrated Control System Service Manual for B1001 – 2004 Acura TSX, page 40.

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