Lexus ES: System Diagram
SYSTEM DIAGRAM

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CAUTION / NOTICE / HINT HINT:
*: Use the Techstream
Use the following procedure to troubleshoot the hybrid battery system.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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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
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
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DATA LIST / ACTIVE TEST NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
When diagnosing symptoms such as hesitation, rough idle, or other small symptoms usi
TERMINALS OF ECU STEREO COMPONENT EQUALIZER ASSEMBLY Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G15-1 (CANH) P CAN communication signal - - G15-2 (ACK1) V Serial communication (UART) signal - - G15-3 (NEI) - G15-28 (G
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