Lexus ES manuals

Lexus ES: System Diagram

SYSTEM DIAGRAM

HINT:

Each tire pressure warning valve and transmitter sends its transmitter ID, temperature and tire pressure information to the tire pressure warning ECU and receiver.

Transmitting ECU (Transmitter)

Receiving ECU

Signal

Communication Method

Combination Meter Assembly

Main Body ECU (Multiplex Network Body ECU)

Vehicle speed signal

CAN communication line

Main Body ECU (Multiplex Network Body ECU)

Combination Meter Assembly

Tire pressure warning light signal

CAN communication line

Skid Control ECU (Brake Actuator Assembly)

Tire Pressure Warning ECU and Receiver

Speed sensor signal

CAN communication line

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 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the tire pressure warning system. Make sure that the wireless door lock control system has exited diagnostic mode before

 Operation Check

OPERATION CHECK CHECK TIRE PRESSURE WARNING SYSTEM FUNCTION (a) Using the Data List, check that the current tire pressure is normal. Click here (1) Slowly reduce the tire pressure of the front or re

 Registration

REGISTRATION PROCEDURE 1. BEFORE REGISTRATION NOTICE: The transmitter ID is written on the tire pressure warning valve and transmitter. It is not possible to read the transmitter ID after installin

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 Lost Communication with Panoramic View Monitor Control Module (U023B)

DESCRIPTION These DTCs are stored if there is a malfunction in the CAN communication system connected to the rear television camera assembly. HINT: If CAN communication system DTCs are stored, they may also be stored in other systems. DTC No. Detection Item DTC Detection Condition Trouble A

 Diagnosis System

DIAGNOSIS SYSTEM DESCRIPTION (a) The motor generator control ECU (MG ECU) (inverter with converter assembly) has a self-diagnosis system. If the motor generator control ECU (MG ECU), motor generator system or a component is not working properly, the ECU records the conditions that relate to the faul

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