Toyota 4Runner: Poor Sound Quality in All Modes (Low Volume)

Toyota 4Runner Service Manual / Audio / Visual / Telematics / Audio / Video / Audio And Visual System / Poor Sound Quality in All Modes (Low Volume)

PROCEDURE

1.	CHECK AUDIO SETTINGS

(a) Set "Treble", "Mid" and "Bass" to the initial values and check that sound is normal.

OK:

Malfunction disappears.

HINT:

Sound quality adjustment measures vary according to the type of amplifier.

END

2.	COMPARE WITH ANOTHER VEHICLE OF SAME MODEL

(a) Compare with another vehicle of the same model which does not have trouble to see if there is any difference in the sound quality.

OK:

No difference is found.

END

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Screen Flicker or Color Distortion

PROCEDURE 1. CHECK DISPLAY SETTING (a) Reset display settings (contrast, brightness) and check that the screen appears normal. OK: The display returns to normal. ...

Voice Guidance does not Function

PROCEDURE 1. CHECK VOICE GUIDANCE SETTING (a) Display the "Voice Settings" screen. (b) Check if the "Voice Recognition Prompts" is not "Off& ...

Other materials about Toyota 4Runner:

Driver Side Solar Sensor Short Circuit (B14A2)
DESCRIPTION The automatic light control sensor (solar sensor), which is installed on the upper side of the instrument panel, detects sunlight and controls the air conditioning in auto mode. The output current from the automatic light control sensor (sol ...

Reassembly
REASSEMBLY PROCEDURE 1. INSTALL STEERING RACK END SUB-ASSEMBLY (a) Temporarily install the 2 steering rack ends to the steering rack. (b) Fill up the ball joints of the steering rack ends with MP grease. (c) Using SST, install the steering rack ...