Driver Side Door Key Cylinder Switch Signal Error


Table of contents

B1127 ACURA Possible Causes

  • Faulty Driver Side Door Key Cylinder Switch
  • Driver Side Door Key Cylinder Switch harness is open or shorted
  • Driver Side Door Key Cylinder Switch circuit poor electrical connection
  • Faulty Door Multiplex Control Unit

How do I fix code B1127 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 B1127 ACURA code

  The cost of diagnosing the B1127 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)

B1127 ACURA Description

  The Door Multiplex Control Unit monitors the Driver Side Door Key Cylinder Switch. The Door Multiplex Control Unit sets the OBDII code when the Driver Side Door Key Cylinder Switch is not to factory specifications.

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