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

READ NEXT:

 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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 Engine Coolant Pump No Signal (P26CA31)

DESCRIPTION Refer to DTC P26CA12. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note P26CA31 Engine Coolant Pump No Signal The speed of the water inlet housing with water pump sub-assembly calculated from the WPI signal is less than 10 rpm

 Open in B Power Line (B242F)

DESCRIPTION The headlight ECU sub-assembly operates using the power source voltage input from the IG terminal and ECUB terminal. The power source voltage of the ECUB terminal is supplied when the main body ECU (multiplex network body ECU) turns the ECUB power supply relay (H-LP LH relay and H-LP RH

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