DTC B2181 Acura

Drivers Door Lock Knob Switch LOCK UNLOCK Signal Error

Drivers Door Lock Knob Switch LOCK UNLOCK Signal Error

Description

Drivers Door Lock Knob Switch malfunction. NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

Cause and Solution

Check for loose or poor connections
Open or Short condition between the Drivers Door Lock Knob Switch and the Drivers MPCS unit
Faulty Drivers Door Lock Knob Switch; replace the drivers door lock actuator assembly.

Video Guide

Duration: PT4M7S | Uploaded: 2020-04-13

Diagnostic Info

  • DTC Code: B2181
  • Brand: Acura
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