Acura B2186: Front Passenger's Door Lock Switch LOCK/UNLOCK Signal Error

Is your scanner showing Acura B2186?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Acura B2186: Front Passenger's Door Lock Switch LOCK/UNLOCK Signal Error

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$200-$300
Can I Still Drive?
:
Yes

What Does The Acura B2186 Code Mean?

Front Passenger’s Door Lock Switch malfunction.

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

What Are The Potential Causes Of The Acura B2186 Code?

  • Check for loose or poor connections
  • “Open” or “Short” condition between the Front Passenger’s Door Lock Switch and the Front Passenger’s MPCS unit
  • Faulty Front Passenger’s Door Lock Switch
  • Faulty Front Passenger’s MPCS unit

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Acura Under-dash Fuse/Relay Box
>>> Acura Power Door Lock Switch

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Acura B2186, DTCDECODE.

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