Diagnostic Trouble Code Chart [10/2023 - ]

WARNING: This page is about a different car, the 2024 Lexus LS 500h. However, it is still accessible from the selected car via links, so may be relevant.

LIN COMMUNICATION SYSTEM

DTC No.	Detection Item	Link
B1206	P/W Master Switch Communication Stop	Refer to DTC B1206: P/W Master Switch Communication Stop; DTC B1273: Sliding Roof ECU Communication Stop; 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 B232A: Lost Communication with RR Door Quarter Window Sunshade ECU; DTC B232B: Lost Communication with RL Door Quarter Window Sunshade ECU [10/2023 - ]
B1273	Sliding Roof ECU Communication Stop	Refer to DTC B1206: P/W Master Switch Communication Stop; DTC B1273: Sliding Roof ECU Communication Stop; 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 B232A: Lost Communication with RR Door Quarter Window Sunshade ECU; DTC B232B: Lost Communication with RL Door Quarter Window Sunshade ECU [10/2023 - ]
B2321	Driver Side Door ECU Communication Stop	Refer to DTC B1206: P/W Master Switch Communication Stop; DTC B1273: Sliding Roof ECU Communication Stop; 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 B232A: Lost Communication with RR Door Quarter Window Sunshade ECU; DTC B232B: Lost Communication with RL Door Quarter Window Sunshade ECU [10/2023 - ]
B2322	Front Passenger Side Door ECU Communication Stop	Refer to DTC B1206: P/W Master Switch Communication Stop; DTC B1273: Sliding Roof ECU Communication Stop; 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 B232A: Lost Communication with RR Door Quarter Window Sunshade ECU; DTC B232B: Lost Communication with RL Door Quarter Window Sunshade ECU [10/2023 - ]
B2323	Rear Door RH ECU Communication Stop	Refer to DTC B1206: P/W Master Switch Communication Stop; DTC B1273: Sliding Roof ECU Communication Stop; 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 B232A: Lost Communication with RR Door Quarter Window Sunshade ECU; DTC B232B: Lost Communication with RL Door Quarter Window Sunshade ECU [10/2023 - ]
B2324	Rear Door LH ECU Communication Stop	Refer to DTC B1206: P/W Master Switch Communication Stop; DTC B1273: Sliding Roof ECU Communication Stop; 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 B232A: Lost Communication with RR Door Quarter Window Sunshade ECU; DTC B232B: Lost Communication with RL Door Quarter Window Sunshade ECU [10/2023 - ]
B2325	LIN Communication Bus Malfunction	Refer to DTC B2325: LIN Communication Bus Malfunction [10/2023 - ]
B232A	Lost Communication with RR Door Quarter Window Sunshade ECU	Refer to DTC B1206: P/W Master Switch Communication Stop; DTC B1273: Sliding Roof ECU Communication Stop; 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 B232A: Lost Communication with RR Door Quarter Window Sunshade ECU; DTC B232B: Lost Communication with RL Door Quarter Window Sunshade ECU [10/2023 - ]
B232B	Lost Communication with RL Door Quarter Window Sunshade ECU	Refer to DTC B1206: P/W Master Switch Communication Stop; DTC B1273: Sliding Roof ECU Communication Stop; 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 B232A: Lost Communication with RR Door Quarter Window Sunshade ECU; DTC B232B: Lost Communication with RL Door Quarter Window Sunshade ECU [10/2023 - ]
B2785	Communication Malfunction between ECUs Connected by LIN	Refer to DTC B2785: Communication Malfunction between ECUs Connected by LIN [10/2023 - ]
B2786	No Response from Steering Lock ECU	Refer to DTC B2786: No Response from Steering Lock ECU [10/2023 - ]
B2789	No Response from ID BOX	Refer to DTC B2789: No Response from ID BOX [10/2023 - ]
B278C	Lost Communication with Power Source Control	Refer to DTC B278C: Lost Communication with Power Source Control [10/2023 - ]