Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code For details of the code, refer to table below.
Inspect the fuses and relays related to this system before inspecting the suspected areas below

LIN Communication System

DTC CODE CHART

DTC Code	Detection Item	Trouble Area
B1206	P/W Master Switch Communication Stop	Main body ECU Master switch assembly Harness or connector
B1273	Sliding Roof ECU Communication Stop	Main body ECU Sliding roof ECU Harness or connector
B1492/92	Infrared Ray Sensor Communication Malfunction	Infrared ray sensor Harness or connector between infrared ray sensor and air conditioning amplifier LIN communication line
B2287	LIN Communication Master Malfunction	Main body ECU Certification ECU harness or connector
B2321	Driver Side Door ECU Communication Stop	Main body ECU Front door ECU (for driver Side) Harness or connector
B2322	Front Passenger Side Door ECU Communication Stop	Main body ECU Front door ECU (for front passenger side) Harness or connector
B2323	Rear Door RH ECU Communication Stop	Main body ECU Rear door ECU RH Harness or connector
B2324	Rear Door LH ECU Communication Stop	Main body ECU Rear door ECU LH Harness or connector
B2325	LIN Communication Bus Malfunction	Main body ECU Master switch assembly Front power window regulator motor LH Front power window regulator motor RH Rear power window regulator motor LH Rear power window regulator motor RH Sliding roof ECU Harness or connector
B2405	Sub Bus LIN Module Communication Malfunction	Luggage room junction block Map light assembly Harness or connector
B2785	Communication Malfunction between ECUs Connected by LIN	Certification ECU Main body ECU ID code box Steering lock actuator (steering lock ECU) Harness or connector
B2786	No Response from Steering Lock ECU	Certification ECU Steering lock actuator (steering lock ECU) Harness or connector
B2789	No Response from ID BOX	Certification ECU ID code box Harness or connector
U0211	Lost Communication with Rear Seat Control ECU RH	Rear power seat module switch Position control ECU RH Harness or connector
U0246	Lost Communication with Rear Seat Control ECU LH	Rear power seat module switch Position control ECU LH Harness or connector
U1127	Lost Communication with Center Console Switch ECU	Outer mirror switch No 1 console switch Harness or connector
U1128	Lost Communication with Front Climate Control Seat ECU RH	Outer mirror switch Front seat climate control ECU RH Harness or connector
U1129	Lost Communication with Front Climate Control Seat ECU LH	Outer mirror switch Front seat climate control ECU LH Harness or connector
U1130	Lost Communication with Rear Climate Control Seat ECU RH	Rear power seat module switch Rear seat climate control ECU RH Harness or connector
U1131	Lost Communication with Rear Climate Control Seat ECU LH	Rear power seat module switch Rear seat climate control ECU LH Harness or connector