Toyota Sienna Service Manual: Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier
DESCRIPTION
The radio receiver sends a sound signal to the stereo component amplifier through this circuit.
The sound signal that has been sent is amplified by the stereo component amplifier, and then is sent to the speakers.
If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier or speakers.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER)
- Disconnect the connectors from the radio receiver and stereo component amplifier.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Speaker Circuit
DESCRIPTION
When the vehicle has a built-in type amplifier, a sound signal is
sent from the radio receiver to the
speakers via the "6 Speaker System" circuit.
When the ...
Sound Signal Circuit between Radio Receiver and Television Display
Assembly
DESCRIPTION
The television display assembly sends a sound signal to the radio receiver
through this circuit.
The sound signal that has been sent is amplified by the stereo component
amplifier ...
Other materials:
Speaker Circuit
DESCRIPTION
The sound signal that has been amplified by the stereo component amplifier is
sent to the speakers from
the stereo component amplifier through this circuit.
If there is a short in this circuit, the stereo component amplifier detects it
and stops output to the speakers.
Thus s ...
Rear Airbag Sensor LH Circuit Malfunction
DTC B1155/39 Rear Airbag Sensor LH Circuit Malfunction
DESCRIPTION
The rear airbag sensor LH circuit consists of the center airbag sensor
assembly and rear airbag sensor
LH.
If the center airbag sensor assembly receives signals from the rear airbag
sensor LH, it judges whether or
not the ...
What to do if... (Troubleshooting)
If there is a problem with the hands-free system or a Bluetooth®
device, first check the table below.
When using the hands-free system with a Bluetooth® device
The hands-free system or Bluetooth® device does not
work.
The connected device may not be a compatible Bl ...
