Combination Switch Control Unit Lost Communication With MICU


Table of contents

B1255 ACURA Possible Causes

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

How do I fix code B1255 ACURA?

  Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.

Cost of diagnosing the B1255 ACURA code

  The cost of diagnosing the B1255 ACURA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

B1255 ACURA Description

  The Multiplex Integrated Control Unit (MICU) monitors the Combination Switch Control Unit. The MICU sets the OBDII code when the Combination Switch Control Unit is not to factory specifications.

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