Lexus ES manuals

Lexus ES: Check For Intermittent Problems

CHECK FOR INTERMITTENT PROBLEMS

CHECK FOR INTERMITTENT PROBLEMS

(a) Perform a simulation test.

(1) For the simulation test, reproduce the driving conditions that were present when the problem occurred. These conditions should be based on the customer's comments and freeze frame data that is recorded with DTCs, such as the opening angle of the accelerator pedal, SOC (state of charge), engine coolant temperature, engine speed, and generator (MG1) / motor (MG2) rpm and torque.

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(b) Check the connector(s) and terminal(s).

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(c) Wiggle the harness and connector(s).

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(d) Heat or cool suspected parts.

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 Utility

UTILITY NOTICE: If the HV battery or an HV supply stack sub-assembly has been replaced, make sure to perform the following utilities in the following order: "Battery Status Info Update", "Prediagno

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE Hybrid Battery System Symptom Suspected Area Link "Maintenance Required for Traction Battery Cooling Parts See Owner's Manual" is displayed on the multi-information d

 Terminals Of Ecu

TERMINALS OF ECU *1 Battery ECU assembly - - Terminal No. (Symbols) Wiring Color Input/Output Terminal Description Condition Specified Condition y16-1 (AM) - y16-27 (GND)

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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) Always 11 to 14 V G128-3 (SIG-) - G128-20 (E) B - W-B Ground Always Below 1 V G128-4 (IND1) - G128-20 (E

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed

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