Lexus NX: System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitting ECU

Receiver ECU

Signal

Communication Method

Certification ECU (Smart Key ECU Assembly)

Main Body ECU (Multiplex Network Body ECU)

Back door opener switch assembly signal

CAN

Main Body ECU (Multiplex Network Body ECU)

Multiplex Network Door ECU

Back door opener switch assembly signal

CAN

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 System Description

SYSTEM DESCRIPTION BACK DOOR CLOSER SYSTEM DESCRIPTION (a) Operating any back door opener switch assembly when the back door is fully closed inputs a request signal to the multiplex network door ECU.

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: The back door closer system troubleshooting procedure is based on the premise that the power back door system is operating normally. Check the power back door system f

 Operation Check

OPERATION CHECK CHECK BASIC FUNCTIONS (a) When the back door is partially closed, check that the motor operates to fully close (lock) the back door. (b) Check that the back door can be opened. (c) Whe

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 Operation Check

OPERATION CHECK INSPECT ILLUMINATED ENTRY SYSTEM OPERATION NOTICE: Perform this inspection with the customizable parameters set to the initial settings. HINT: When inspecting the following functions, make sure that the map light switch and spot light switch are in the DOOR position. (a) The interior

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected

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