Lexus ES: System Diagram
SYSTEM DIAGRAM
SYSTEM DIAGRAM
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LOCAL CAN CIRCUIT
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Before performing troubleshooting for the front radar sensor system, perform troubleshooting for the pre-collision system.
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*: Use the Techstream.
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Utility
UTILITY NOTICE:
When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used
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
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Telematics Transceiver Disconnected (B15DB)
DESCRIPTION If the radio receiver assembly cannot detect the DCM (telematics transceiver) for a certain period of time (90 seconds) after the power switch is turned on (ACC) and the radio receiver assembly confirms that the information is missing by checking past DCM (telematics transceiver) recogni
Check Bus 4 Line for Short to +B
DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 22 (CA2H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the central gateway ECU (network gateway ECU) and termin
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