B1002 HONDA - Multiplex Integrated Control Unit Internal Error

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

Possible causes

  • Faulty Multiplex Control Unit Module (MICU)
  • Multiplex Control Unit Module (MICU) harness is open or shorted
  • Multiplex Control Unit Module (MICU) circuit poor electrical connection

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B1002 Honda Description

The Multiplex Control Unit Module (MICU) monitors itself. The MICU sets the OBDII code when there is an internal error.
OBDII Code B1002 Honda - Multiplex Integrated Control Unit Internal Error - Engine-Codes.com

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