Lexus ES: System Diagram
SYSTEM DIAGRAM
for 12.3 inch display w/o Panoramic View Monitor System 
w/ Blind Spot Monitor System 
w/ Panoramic View Monitor System 
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Terminals Of Ecu
TERMINALS OF ECU CLEARANCE WARNING ECU ASSEMBLY (a) Disconnect the N41 clearance warning ECU assembly connector. (b) Measure the voltage and resistance on the wire harness side connector according to
The Display of the Multi-display does not Switched
DESCRIPTION The multi-display receives a signal from the clearance warning ECU assembly to change the display screen. WIRING DIAGRAM PROCEDURE 1. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING
Control Module Communication Bus "A" Off (U0073,U0126,U0129,U0140,U0155)
DESCRIPTION These DTCs are stored when the clearance warning ECU assembly cannot receive and recognize several signals via the CAN communication line. DTC No. Detection Item DTC Detection Condi
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Deceleration Sensor Internal Circuit (C1419,C1435)
DESCRIPTION The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition using 2 circuits (GL1, GL2). If an internal malfunction signal from the yaw rate and acceleration sensor (airbag ECU assembly) is detected by the skid control ECU (brake booster with
Inspection
INSPECTION PROCEDURE 1. INSPECT FUEL PRESSURE SENSOR (a) Check the fuel pressure sensor output voltage. (1) Apply 5 V between terminals 1 (VC) and 2 (E2). NOTICE:
Be careful when connecting the leads as the fuel pressure sensor may be damaged if the leads are connected to the wrong terminals
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