Lexus NX: Sound Quality is Bad Only when Disc is Played (Volume is Too Low)

Lexus NX Service Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System / Sound Quality is Bad Only when Disc is Played (Volume is Too Low)

CAUTION / NOTICE / HINT

NOTICE:

When replacing the radio receiver assembly, always replace it with a new one.

If a radio receiver assembly which was installed to another vehicle is used, the following may occur:

A communication malfunction DTC may be stored.
The radio receiver assembly may not operate normally.

HINT:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

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PROCEDURE

1.	REPLACE DISC AND RECHECK

(a) Replace the disc with a known good one and check that the malfunction disappears.

OK:

Malfunction disappears.

END

2.	CHECK NOISE CONDITION

(a) Check that noise is output from the speakers when a disc is inserted and is being read.

OK:

Noise is output.

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

REPLACE RADIO RECEIVER ASSEMBLY

SEE MORE:

Terminals Of Ecu

TERMINALS OF ECU CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *1 Main Body ECU (Multiplex Network Body ECU) - - (a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Click here (b)

Components

COMPONENTS ILLUSTRATION *1 NO. 1 ENGINE UNDER COVER ASSEMBLY *2 REAR ENGINE UNDER COVER LH *3 REAR ENGINE UNDER COVER RH - - ILLUSTRATION *A w/o AVS *B w/ AVS *1 FRONT AXLE ASSEMBLY LH *2 FRONT AXLE SHAFT NUT LH *3 FRONT LOWER NO. 1 SUSPENSION ARM SUB

Lexus NX: Sound Quality is Bad Only when Disc is Played (Volume is Too Low)

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Disc cannot be Inserted or is Ejected Right After Insertion

Disc cannot be Ejected

CD/DVD Sound Skips

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Terminals Of Ecu

Components