Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000001CIN003X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Display Indicates when Power Switch Turned ON but no Sound cannot be Heard and Noise is Produced; 2007 MY LX470 [08/2006 -        ]

Display Indicates when Power Switch Turned ON but no Sound cannot be Heard and Noise is Produced

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK CASSETTE TAPE PLAYER

(a) Is cassette tape player operating normally?

OK

REPLACE RADIO RECEIVER ASSEMBLY

NG

2.

INSPECT FUSE (ACC, AMP)

(a) Remove the ACC fuse from the cowl side junction block LH.

(b) Remove the AMP fuse from the engine room junction block.

(c) Measure the resistance of the fuse.

Standard resistance:

Below 1 Ω

NG

REPLACE FUSE

OK

3.

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - BATTERY AND BODY GROUND)
NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

4.

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER)
NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

5.

REPLACE SPEAKER

(a) Temporarily install another speaker. Functions OK?

OK

SPEAKER FAULTY

NG

6.

CHECK NOISE

(a) Is hiss noise from speaker?

OK:

Hiss noise is not from speaker.

OK

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY (RECHECK SYSTEM AFTER REPLACEMENT)

NG

REPLACE RADIO RECEIVER ASSEMBLY (RECHECK SYSTEM AFTER REPLACEMENT)