Toyota Sienna Service Manual: 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.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT RADIO AND NAVIGATION ASSEMBLY
- Measure the voltage according to the value(s) in the table below.
Standard voltage
2 CHECK HARNESS AND CONNECTOR
- Disconnect the radio and navigation assembly connector R10.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3 CHECK HARNESS AND CONNECTOR (MICROPHONE - RADIO AND NAVIGATION ASSEMBLY)
- Disconnect the microphone connector T13 and radio and navigation assembly connector R10.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
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 CONNECTO ...
Stereo Component Amplifier Communication Error
INSPECTION PROCEDURE
1 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE
Enter the diagnostic mode.
Press the "LAN Mon" switch to change to "LAN Monitor"
mode.
&nbs ...
Other materials:
Removal
1. REMOVE FRONT SEAT INNER BELT ASSEMBLY
HINT:
Refer to the instructions for disassembly of the front seat assembly
(for flat type).
Refer to the instructions for disassembly of the front seat assembly
(for manual seat).
Refer to the instructions for disassembly of the fro ...
Installation
1. INSTALL DISTANCE CONTROL ECU ASSEMBLY
Using a torque wrench, install the bolt.
Torque: 5 N*m (51 kgf*cm, 44 in.*lbf)
NOTICE:
Do not install the dropped or shocked distance
control ECU assembly.
2. INITIALIZE DISTANCE CONTROL ECU
NOTICE:
After replacing the distance control ECU ...
Open in Occupant Classification ECU Battery
Positive Line
DTC B1794 Open in Occupant Classification ECU Battery
Positive Line
DESCRIPTION
This circuit consists of the occupant classification ECU and the power source
circuit (battery, fuse, wire
harness).
DTC B1794 is recorded when a malfunction is detected in the occupant
classification ECU or t ...
