Lexus ES manuals

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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 Lost Communication with ECM/PCM "A" Missing Message (U010087)

DESCRIPTION The engine control unit and transmission control unit are located inside the ECM. The engine control unit intercommunicates with the transmission control unit using CAN communication. If there is a problem in this intercommunication, the ECM stores this DTC. DTC No. Detection Item

 Removal

REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during knock control sensor removal/installation are shown below. Necessary Procedures After Parts Removed/Ins

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