Lexus ES manuals

Lexus ES: System Diagram

Lexus ES (XZ10) Service Manual / Brake / Brake Control / Dynamic Control Systems / Electronically Controlled Brake System (for Gasoline Model) / 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

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 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

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

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 Parts Location

PARTS LOCATION ILLUSTRATION *1 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *2 COMBINATION METER ASSEMBLY *3 DLC3 *4 CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) *5 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-B NO. 2 FUSE - DOOR F/L FUSE - DOOR F/R FUSE - DOOR R/L FUSE - DOO

 Main Body ECU Communication Stop Mode

DESCRIPTION Detection Item Symptom Trouble Area Main Body ECU Communication Stop Mode Any of the following conditions are met: Communication stop for "Main Body" is indicated on the "Communication Bus Check" screen of the Techstream. Click here Communication stop history for "Ma

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