Toyota Sienna Service Manual: Television Display Assembly Communication Error
INSPECTION PROCEDURE
1 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE
- Enter the diagnostic mode.

- Press the preset switch "3" to change to "Detailed
Information Mode".
- Identify the component shown by the sub-code.
HINT:
- "190 (radio receiver)" is the component shown by the
sub-code in the example shown in the illustration.
- For details of the DTC display, refer to "DTC CHECK/
CLEAR"
2 CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE
- Inspect the power source circuit of the component shown
by the sub-code.
If the power source circuit is operating normally, proceed
to the next step
Component Table:

3 INSPECT RADIO RECEIVER

- Disconnect the radio receiver connectors.
- Measure the resistance according to the value(s) in the
table below.
Standard resistance

*1: 10 Speaker System
4 CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - COMPONENT
SHOWN BY SUB-CODE)
HINT:
- Start the check from the circuit that is near the component
shown by the sub-code first.
- For details of the connectors, refer to "TERMINALS OF ECU".
- Referring to the AVC-LAN wiring diagram below, check
the AVC-LAN circuit between the television display
assembly and the component shown by the sub-code.
- Disconnect all connectors between the television
display assembly and the component shown by
sub-code.
- Check for an open or short in the AVC-LAN circuit
between the television display assembly and the
component shown by the sub-code.
OK:
There is no open or short circuit

5 REPLACE COMPONENT SHOWN BY SUB-CODE
- Replace the component shown by the sub-code with a
normal one and check if the same problem occurs again.
OK:
Same problem does not occur.
END
INSPECTION PROCEDURE
1 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE
Enter the diagnostic mode.
Press the preset switch "3" to change to "Detailed
Information Mode" ...
DESCRIPTION
This circuit provides power to the radio receiver.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT RADIO RECEIVER ASSEMBLY
Disconnect the radio receiver connector.
Measure ...
Other materials:
Magnetic clutch relay
ON-VEHICLE INSPECTION
1. INSPECT MAGNETIC CLUTCH RELAY
(a) Remove the magnetic clutch relay.
(b) Measure the resistance according to the value(s) in
the table below.
Standard resistance
If the resistance is not as specified, replace the
magnetic clutch relay. ...
Messages
Concept
The menu centrally displays all messages arriving
in the vehicle in list form.
General information
The following messages can be displayed:
Traffic messages.
Check Control messages.
Service requirements messages.
Communication messages, for example emails,
SMS text messages or reminder ...
Disassembly
1. INSPECT PACK CLEARANCE OF FORWARD
CLUTCH
HINT:
(See page AX-242)
2. REMOVE FORWARD MULTIPLE DISC CLUTCH DISC
(a) Using a screwdriver, remove the snap ring.
(b) Remove the flange, 5 discs and 5 plates from the
input shaft assembly.
3. REMOVE FORWARD CLUTCH RETURN SPRING
SUB-ASSEMB ...