Lexus ES: Lost Communication With Body Control Module "B" (U0142)

Lexus ES (XZ10) Service Manual / Vehicle Interior / Mirror (ext) / Power Mirror Control System (for Gasoline Model With Memory) / Lost Communication With Body Control Module "B" (U0142)

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
U0142	Lost Communication with Main Body ECU	No communication with main body ECU (multiplex network body ECU)	CAN communication system Main body ECU (multiplex network body ECU)

PROCEDURE

1.	GO TO CAN COMMUNICATION SYSTEM

HINT:

Refer to CAN Communication System.

Click here

END

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Terminals Of Ecu

TERMINALS OF ECU Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G128-1 (+B) - G128-20 (E) BR - W-B Power source (+B) Power switch off 11 to 14 V G128-3 (SIG-) - G128-20 (E) B - W-B Ground Always Below 1 V G128-4 (IND1) -

Generator Resolver Circuit

DESCRIPTION The cause of this malfunction may be the generator resolver. Check the generator resolver internal resistance and connection condition from the inverter to the resolver. Related Parts Check Area Inspection Wire harness and connector between the inverter and generator resolver

Lexus ES: Lost Communication With Body Control Module "B" (U0142)

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Terminals Of Ecu

Generator Resolver Circuit