Lexus ES: System Diagram
SYSTEM DIAGRAM
w/ Parking Assist Monitor System 
w/ Panoramic View Monitor System 
w/ Manual (SOS) Switch 
w/o Manual (SOS) Switch 
for 10 Speakers 
for 17 Speakers 
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Terminals Of Ecu
TERMINALS OF ECU HINT: Check from the rear of the connector while it is connected to the components. RADIO RECEIVER ASSEMBLY Terminal No. (Symbol) Wiring Color Terminal Description Condition
Sending Malfunction (Navigation to APGS) (U0073,U0100,U0129,U0140,U0155,U0164,U0198,U023B,U0265,U1110)
DESCRIPTION These DTCs are stored when a malfunction occurs in the CAN communication circuit. DTC No. Detection Item DTC Detection Condition Trouble Area U0073 Sending Malfunction (Navi
USB Audio System Recognition/Play Error
DESCRIPTION When a USB device or "iPod" is connected to the USB jack of the No. 1 stereo jack adapter assembly, it must have playable files. The device must also communicate with and be recognized by
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Driving Mode Select switch
The driving modes can be selected
to suit driving condition.
Selecting the driving mode
Normal mode
Provides an optimal balance of fuel economy,
quietness, and dynamic performance.
Suitable for city driving.
Press the switch to change the normal
mode when not in normal mode.
FR Damping Force Control Actuator Circuit (C1731-C1734)
DESCRIPTION The absorber control actuator changes the damping force depending on absorber control ECU signals. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory C1731 FR Damping Force Control Actuator Circuit Either condition is met:
An open
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