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.

OK

END

NG

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.

OK

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

NG

REPLACE RADIO RECEIVER ASSEMBLY

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 Disc cannot be Inserted or is Ejected Right After Insertion

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

 Disc cannot be Ejected

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

 CD/DVD Sound Skips

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

SEE MORE:

 Fail-safe Chart

FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) When a malfunction occurs in the lane tracing assist system, a message is displayed on the multi-information display and control is canceled in accordance with the malfunction. Warning Message Cause Fail-safe Operation Conditions to Return to Normal Co

 Parts Location

PARTS LOCATION ILLUSTRATION *1 VEHICLE SOUND SWITCH *2 STEREO COMPONENT EQUALIZER ASSEMBLY *3 NO. 1 SPEAKER ASSEMBLY WITH BOX *4 HYBRID VEHICLE CONTROL ECU *5 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *6 BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY - SKID CONTROL ECU

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