SYSTEM DIAGRAM

Precaution
How To Proceed With TroubleshootingToyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): Poor Sound Quality in All Modes (Low Volume)
PROCEDURE
1.
CHECK AUDIO SETTINGS
(a) Set bass, mid-range and treble to the initial values and check that the sound
is normal.
OK:
The sound returns to normal.
HINT:
Sound quality adjustment measures vary according to the type of amplifier.
OK
...
Toyota CH-R Service Manual > Charging System: Noise Occurs from V-ribbed Belt or Generator Assembly
PROCEDURE
1.
CONFIRM PROBLEM SYMPTOM
(a) Confirm the problem symptom.
Symptom
Proceed to
Noise occurs from V-ribbed belt.
A
Noise occurs from generator assembly.
B
B
...