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.
2012 Toyota Prius TwoFACTORY OEM SERVICE PROCEDURE
Section 113 (Lin Communication System (Plug-In) (Diagnostic Codes))
WARNING: This page is about a different variant/trim than selected.
- Lin Communication System
- DTC B1206: P/W Master Switch Communication Stop
- DTC B2287: LIN Communication Master Malfunction
- DTC B2321: Driver Side Door ECU Communication Stop
- DTC B2322: Front Passenger Side Door ECU Communication Stop
- DTC B2323: Rear Door RH ECU Communication Stop
- DTC B2324: Rear Door LH ECU Communication Stop
- DTC B2325: LIN Communication Bus Malfunction
- DTC B2785: Communication Malfunction between ECUs Connected by LIN
- DTC B2786: No Response from Steering Lock ECU
- DTC B2789: No Response from ID BOX
- DTC B278C: Lost Communication with Power Source Control
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.
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