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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 57 (Audio / Video System (For 12.3 Inch Display) - Diagnostic Codes (1 Of 2)) >> AUDIO AND VISUAL SYSTEM (for 12.3 Inch Display) >> DTC B15D0-87: MOST Communication Missing Message [09/2022 - ] >> Check Point

Check Point

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Before proceeding with the following procedure, start diagnostic mode, enter the "MOST Line Check" screen and check the results.

The following MOST line check result pattern table can be used to quickly identify trouble areas and inspection procedures.

MOST Network Outline 

GTY1122428Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
MOST LINE CHECK RESULT PATTERN

Pattern Device Name Result Trouble Area Inspection
1 AVN OK a, c Inspect MOST communication line between "AVN" and "AMP"
AMP OK
2 AVN OK b, c Inspect wake up communication line between "AVN" and "AMP"
AMP NCON