Smart key system
Front seatsToyota 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 > Audio And Visual System(for Radio And Display Type): Speaker Circuit
DESCRIPTION
If there is a short in a speaker circuit, the radio and display receiver assembly
detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is no malfunction
in the radio and display receiver assembly, DCM (telematics transceiver)*1 or ...