Diagnostic Trouble Code Chart [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

DTC Code	Detection Item	See
B1206	P/W Master Switch Communication Stop	Refer to DTC B1206: P/W Master Switch Communication Stop [08/2013 - ]
B1273	Sliding Roof ECU Communication Stop	Refer to DTC B1273: Sliding Roof ECU Communication Stop [08/2013 - ]
B2321	Driver Side Door ECU Communication Stop	Refer to DTC B2321: Driver Side Door ECU Communication Stop [08/2013 - ]
B2322	Front Passenger Side Door ECU Communication Stop	Refer to DTC B2322: Front Passenger Side Door ECU Communication Stop [08/2013 - ]
B2323	Rear Door RH ECU Communication Stop	Refer to DTC B2323: Rear Door RH ECU Communication Stop [08/2013 - ]
B2324	Rear Door LH ECU Communication Stop	Refer to DTC B2324: Rear Door LH ECU Communication Stop [08/2013 - ]
B2325	LIN Communication Bus Malfunction	Refer to DTC B2325: LIN Communication Bus Malfunction [08/2013 - ]
B126A	Remote Engine Starter ECU Communication Stop	Refer to DTC B126A: Remote Engine Starter ECU Communication Stop [08/2013 - ]

CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

DTC Code	Detection Item	See
B2785	Communication Malfunction between ECUs Connected by LIN	Refer to DTC B2785: Communication Malfunction between ECUs Connected by LIN [08/2013 - ]
B2786	No Response from Steering Lock ECU	Refer to DTC B2786: No Response from Steering Lock ECU [08/2013 - ]
B2789	No Response from ID BOX	Refer to DTC B2789: No Response from ID BOX [08/2013 - ]
B278C	Lost Communication with Power Source Control	Refer to DTC B278C: Lost Communication with Power Source Control [08/2013 - ]

POWER MANAGEMENT CONTROL ECU

DTC Code	Detection Item	See
B2287	LIN Communication Master Malfunction	Refer to DTC B2287: LIN Communication Master Malfunction [08/2013 - ]