Lexus ES manuals

Lexus ES: System Diagram

SYSTEM DIAGRAM

Communication Table

Sender

Receiver

Signal

Line

Main Body ECU (Multiplex Network Body ECU)

Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly)

  • Sliding roof operation permission signal
  • IG signal
  • Front door courtesy light switch assembly signal
  • Key-linked operation signal
  • Wireless transmitter-linked operation signal
  • Vehicle speed signal

LIN

Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly)

Main Body ECU (Multiplex Network Body ECU)

Sliding roof position signal

LIN

Combination Meter Assembly

Main Body ECU (Multiplex Network Body ECU)

Vehicle speed signal

CAN

Main Body ECU (Multiplex Network Body ECU)

Combination Meter Assembly

Sliding roof open warning request signal

CAN

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 System Description

SYSTEM DESCRIPTION SLIDING ROOF SYSTEM DESCRIPTION (a) The sliding roof system controls the sliding roof operation using the sliding roof ECU (sliding roof drive gear sub-assembly). Operating the slid

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the sliding roof system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT

 Operation Check

OPERATION CHECK CHECK AUTO OPERATION FUNCTION NOTICE: Make sure that initialization has been completed before performing this inspection. Click here The sliding roof auto operation can be custo

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 Front Speed Sensor RH Circuit Output (C1413,C1414)

DESCRIPTION Each speed sensor detects the wheel speed and sends the signals to the skid control ECU (brake booster with master cylinder assembly). These signals are used for ABS control. HINT: The output voltage values shown below are for when the vehicle wire harnesses are connected to the skid con

 Inspection

INSPECTION PROCEDURE 1. INSPECT AIR FUEL RATIO SENSOR (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 1 (HA1A) - 2 (+B) 20°C (68°F) 1.6 to 3.2 Ω 1 (HA1A) - 4 (A1A-) Always 10 k

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