Toyota Sienna Service Manual: Display Signal Circuit between Television Display Assembly and Radio and Navigation Assembly
DESCRIPTION
This circuit sends a DVD image signal from the television display assembly to the radio and navigation assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSEMBLY - TELEVISION DISPLAY ASSEMBLY)
- Disconnect the radio and navigation assembly connector R16 and television display assembly connector T14.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
2 INSPECT TELEVISION DISPLAY ASSEMBLY
- Reconnect the television display assembly connector R16.
- Measure the waveform according to the table below.
OK
HINT: The waveform pattern may differ from that shown in the illustration below due to differences in oscilloscope setting. A normal television display assembly operating condition can be determined if any waveform is output.
- Oscilloscope waveform
- Terminal: VV+ - Body groun
Setting: 200 mV/DIV., 10 μs/DIV.
Condition: DVD display is ON.
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Navigation Voice Circuit
DESCRIPTION
This circuit is used when the voice guidance in the navigation system is on.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSEMBLY - STER ...
Microphone Circuit between Microphone and Radio and Navigation
Assembly
DESCRIPTION
This circuit sends a microphone signal from the microphone to the radio and
navigation assembly.
It also supplies power from the radio and navigation assembly to the microphone.
WIR ...
Other materials:
Passenger Side Buckle Switch Circuit Malfunction
DTC B1771 Passenger Side Buckle Switch Circuit Malfunction
DESCRIPTION
The passenger side buckle switch circuit consists of the occupant
classification ECU and the front seat
inner belt assembly RH.
DTC B1771 is recorded when a malfunction is detected in the passenger side
buckle switch ci ...
Operating the audio system
Press this button to eject a disc
Insert a disc into the disc slot
Press to pause or resume playing music.
Press the “<” or “>” button to seek up or down for a radio station, or
to access a desired track or file.
Turn this knob to select radio station bands, tracks and ...
Airbag ECU Communication Stop
DTC B1281 Airbag ECU Communication Stop
DESCRIPTION
DTC B1281 is output when communication between the airbag ECU and the
multiplex network gateway
ECU stops for more than 10 seconds.
DTC No.
DTC Detection Condition
Trouble Area
B1281
Airbag ECU communi ...
