Lexus ES: System Diagram
SYSTEM DIAGRAM
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System Description
SYSTEM DESCRIPTION Vehicle Proximity Notification System (a) When the vehicle is being driven quietly using the motor only, the vehicle proximity notification system outputs a warning sound from the v
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the vehicle proximity notification system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
Operation Check
OPERATION CHECK VEHICLE PROXIMITY NOTIFICATION SYSTEM OPERATION CHECK (a) System operation check (vehicle stopped) (1) Apply the parking brake. (2) Turn the power switch on (IG). (3) With the brake pe
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ECM Power Source Circuit
DESCRIPTION When the engine switch is turned on (IG), the battery voltage is applied to IGSW of the ECM. When the transistor in the MREL circuit operates, current flows from the battery to ground through the drive circuit of the EFI-MAIN NO. 1 relay, thus operating the relay which supplies power to
Installation
INSTALLATION PROCEDURE 1. INSTALL STOP LIGHT SWITCH ASSEMBLY (a) Insert the stop light switch assembly until the threaded sleeve hits the pedal as shown in the illustration. *1 Stop Light Switch Mounting Adjuster Insert in this Direction NOTICE: When inserting the stop light switch a
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