Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2022 Lexus NX 450h+ BaseFACTORY OEM SERVICE PROCEDURE
Lin Communication System
LIN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [11/2021 - 03/2023]
| 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 [03/2023 - 03/2024]
| 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 [03/2024 - ]
| 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
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.