Lexus ES: System Diagram
SYSTEM DIAGRAM
| Transmitting ECU (Transmitter) | Receiving ECU | Signal | Communication Method |
| Skid control ECU (brake actuator assembly) | Steering angle sensor | Steering angle sensor request signal | CAN communication line |
| Steering angle sensor | Skid control ECU (brake actuator assembly) | Steering angle sensor signal | CAN communication line |
| Skid control ECU (brake actuator assembly) | Yaw rate and acceleration sensor (airbag ECU assembly) | Yaw rate and acceleration request signal | CAN communication line |
| Yaw rate and acceleration sensor (airbag ECU assembly) | Skid control ECU (brake actuator assembly) | Yaw rate and acceleration signal | CAN communication line |
| Skid control ECU (brake actuator assembly) | ECM | -
Vehicle speed signal
-
Electronically controlled brake system data signal
| CAN communication line |
| ECM | Skid control ECU (brake actuator assembly) | -
Shift position signal
-
Throttle position signal
-
Engine speed signal
-
SFI system data signal
| CAN communication line |
| Skid control ECU (brake actuator assembly) | Power steering ECU (rack and pinion power steering gear assembly) | -
Vehicle speed signal
-
Electronically controlled brake system data signal
| CAN communication line |
| Main body ECU (multiplex network body ECU) | Skid control ECU (brake actuator assembly) | -
Driver seat belt buckle switch signal
-
Driver side courtesy switch signal
| CAN communication line |
| Skid control ECU (brake actuator assembly) | Combination meter assembly | -
ABS warning light signal
-
Brake warning light / red (malfunction) signal
-
Slip indicator light signal
-
VSC OFF indicator light signal
-
Multi-information display (Traction Control Turned Off) signal
-
Brake hold standby indicator light signal
-
Brake hold operated indicator light signal
-
Multi-information display (Secondary Collision Brake System Malfunction) signal
-
Multi-information display (Brake hold system malfunction) signal
-
Vehicle speed signal
| CAN communication line |
| Airbag ECU assembly | Skid control ECU (brake actuator assembly) | Secondary collision brake request signal | CAN communication line |
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SYSTEM DIAGRAM Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method Skid control ECU (brake actuator assembly) Steering angle sensor Steering angle sensor re
TERMINALS OF ECU TERMINALS OF ECU *a Component without harness connected (Skid Control ECU (Brake Actuator Assembly)) - - HINT:
As a waterproof connector is used for the brake actuator
TEST MODE PROCEDURE NOTICE:
After replacing or removing and installing a speed sensor, perform Dealer Mode (Signal Check) inspection to confirm that the speed sensors are operating correctly.
Aft
SEE MORE:
DISASSEMBLY CAUTION / NOTICE / HINT CAUTION: If the rear disc brake cylinder assembly has been disassembled, perform air bleeding for the rear disc brake cylinder assembly. for Gasoline Model: Click here for HV Model: Click here NOTICE:
Make sure not to scratch, damage or apply excessive forc
DTC CHECK / CLEAR CHECK FOR DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / (desired system) / Trouble Codes. Body Electrical > Wiper > Trouble Codes Body Electrical > Main Body >
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