2022 Lexus LX 600 BaseFACTORY OEM SERVICE PROCEDURE

Lin Communication System

LIN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [12/2021 - 10/2023]

DTC Code Description
B1206-87 P/W Master SW System Missing Message
B1273-87 Sliding Roof System Missing Message
B2287-87 LIN Communication Missing Message
B2321-87 D-Door P/W System Missing Message
B2322-87 P-Door P/W System Missing Message
B2323-87 RR-Door P/W System Missing Message
B2324-87 RL-Door P/W System Missing Message
B2325-88 Door LIN Bus off
B276C-88 Alarm / Wiper LIN Bus off
B2781-87 Steering Lock System Missing Message
B2785-88 Communication between ECUs connected by LIN Bus off
B2789-87 ID-BOX Missing Message
B278C-87 Power Source Control System Missing Message
LIN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [10/2023 - ]

DTC Code Description
B1206-87 P/W Master SW System Missing Message
B1273-87 Sliding Roof System Missing Message
B2287-87 LIN Communication Missing Message
B2321-87 D-Door P/W System Missing Message
B2322-87 P-Door P/W System Missing Message
B2323-87 RR-Door P/W System Missing Message
B2324-87 RL-Door P/W System Missing Message
B2325-88 Door LIN Bus off
B276C-88 Alarm / Wiper LIN Bus off
B2781-87 Steering Lock System Missing Message
B2785-88 Communication between ECUs connected by LIN Bus off
B2789-87 ID-BOX Missing Message
B278C-87 Power Source Control System Missing Message
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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