Communication Line Driver Side MPCS Unit Cannot Send UART Messages


Table of contents

B2187 ACURA Possible Causes

  • Faulty Driver Side Multiplex Control System (MPCS)
  • Driver Side Multiplex Control System (MPCS) harness is open or shorted
  • Driver Side Multiplex Control System (MPCS) circuit poor electrical connection

How do I fix code B2187 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 B2187 ACURA code

  The cost of diagnosing the B2187 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)

B2187 ACURA Description

  The Driver Side Multiplex Control System (MPCS) communication line Cannot Send UART Messages.

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