Lexus ES: System Diagram
SYSTEM DIAGRAM

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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
DESCRIPTION This may occur when the intensity of telephone radio frequency was very weak, or the safety connect system has a malfunction and a DTC is set. PROCEDURE 1. CHECK COMMUNICATION SERVIC
VEHICLE CONTROL HISTORY NOTICE: Make sure to record any output Vehicle Control History codes before clearing them and checking the Vehicle Control History again. CHECK VEHICLE CONTROL HISTORY NOTICE:
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INSTALLATION PROCEDURE 1. INSTALL LEVEL WARNING SWITCH ASSEMBLY (a) Install the level warning switch assembly as shown in the illustration. *a Protrusion *b Marking Install in this Direction NOTICE: Make sure that the protrusion of the level warning switch is between the 2 mark
PARTS LOCATION ILLUSTRATION *1 VEHICLE APPROACHING SPEAKER ASSEMBLY *2 SKID CONTROL ECU (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY) ILLUSTRATION *1 HYBRID VEHICLE CONTROL ECU *2 VEHICLE APPROACHING SPEAKER CONTROLLER *3 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *4
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