Toyota Sienna Service Manual: Mute Signal Circuit between Radio and Navigation Assembly and Stereo Component Amplifier
DESCRIPTION
This circuit sends a signal to the stereo component amplifier to mute noise. Because of that, the noise produced by changing the sound source ceases.
If there is an open in the circuit, noise can be heard from the speakers when changing the sound source.
If there is a short in the circuit, even though the stereo component amplifier is normal, no sound, or only an extremely small sound, can be produced.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT STEREO COMPONENT AMPLIFIER
- Measure the voltage according to the value(s) in the table below.
Standard voltage
2 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSEMBLY - STEREO COMPONENT AMPLIFIER)
- Disconnect the radio and navigation assembly connector R15 and television display assembly connector S11.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3 REPLACE STEREO COMPONENT AMPLIFIER
- Replace the stereo component amplifier and check if it operates normally.
OK: The navigation system operates normally
REPLACE RADIO AND NAVIGATION ASSEMBLY
Mute Signal Circuit between Radio and Navigation Assembly and
Television Display Assembly
DESCRIPTION
The radio and navigation assembly controls the volume according to the MUTE
signal from the television
display assembly.
The MUTE signal is sent to reduce noise and a popping sound ...
AVC-LAN Circuit
DESCRIPTION
Each unit of the navigation system connected to the AVC-LAN (communication
bus) transfers the signal of
each switch by communication.
When a short to +B or short to ground occurs in ...
Other materials:
Crankshaft position sensor
Components
Removal
1. Remove compressor and magnetic clutch
HINT:
(See page AC-227 )
2. REMOVE CRANKSHAFT POSITION SENSOR
(a) Disconnect the crankshaft position sensor
connector.
(b) Remove the bolt, and then remove the crankshaft
position sensor.
INSPECTION
1. INSPECT CRANKSHAFT ...
Installation
1. INSTALL NAVIGATION ANTENNA ASSEMBLY
2. INSTALL INSTRUMENT PANEL SAFETY PAD SUBASSEMBLY
Using a torque wrench, install the bolt <B>.
Torque: 20 N*m (204 kgf*cm, 14 ft.*lbf)
3. INSTALL SHIFT LEVER ASSEMBLY
Using a torque wrench, install the 4 bolts.
Torque ...
Radio and Navigation Assembly Power Source Circuit
DESCRIPTION
This is the power source circuit to operate the radio and navigation
assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT RADIO AND NAVIGATION ASSEMBLY
Disconnect the radio and navigation assembly connector
R15.
Measure the resistance according to the value ...
