Toyota 4Runner: Poor Sound Quality in All Modes (Low Volume)
PROCEDURE
|
1. |
CHECK AUDIO SETTINGS |
(a) Set treble, middle and bass to the initial values and check that the sound is normal.
OK:
Malfunction disappears.
HINT:
Sound quality adjustment measures vary according to the type of amplifier.
| OK | .gif) |
END |
|
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|
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.
| OK | |
END |
| NG | |
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. ...
Cursor or Map Rotates when Vehicle Stopped
PROCEDURE
1.
CHECK CONDITION
(a) Check with the customer if the vehicle has been turned by a turntable.
OK:
Vehicle has not been turned by a turntab ...
Other materials about Toyota 4Runner:
Vehicle Speed or Engine Speed Signal Malfunction (C2173/73)
DESCRIPTION
The tire pressure warning ECU receives a vehicle speed signal from the combination
meter and an engine speed signal from the ECM. The tire pressure warning ECU uses
these signals to store DTCs C2121/21 to C2124/24 or C2125/25*.
*: w/ S ...
ECU Power Source Circuit
DESCRIPTION
This circuit provides power to operate the transponder key ECU assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following
inspection procedure.
PROCEDURE
...
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