Lexus ES: Precaution
PRECAUTION
PRECAUTION FOR ACTIVE NOISE CONTROL SYSTEM
(a) If the active noise control microphone garnish hole is blocked, clean away the blockage and perform diagnosis.
(b) If heavy objects are loaded onto the rear package tray, remove them before performing diagnosis.
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
Before checking parts for malfunctions, check that the audio system operates normally.
Use the table below to help determine the cause of problem symptoms. If multi
System Description
SYSTEM DESCRIPTION ACTIVE NOISE CONTROL SYSTEM (a) The active noise control system is a system that detects muffled engine sounds produced in sync that fluctuates according to the engine speed, by usi
System Diagram
SYSTEM DIAGRAM
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Terminals Of Ecu
TERMINALS OF ECU CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY (a) Disconnect the J20 multiplex network master switch assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector discon
Stereo Component Amplifier Malfunction (B15A3)
DESCRIPTION This DTC is stored when a malfunction occurs in the stereo component amplifier assembly. DTC No. Detection Item DTC Detection Condition Trouble Area B15A3 Stereo Component Amplifier Malfunction When any of the following conditions is met:
Internal power supply malfunc
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