Toyota Sienna Service Manual: Stereo Component Amplifier 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 subcode
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 (STEREO COMPONENT AMPLIFIER -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 the "TERMINALS OF ECU".
- Referring to the AVC-LAN wiring diagram below, check
the AVC-LAN circuit between the stereo component
amplifier and the component shown by the sub-code.
- Disconnect all connectors between the stereo
component amplifier and the component shown by
sub-code.
- Check for an open or short in the AVC-LAN circuit
between the stereo component amplifier 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". ...
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" ...
Other materials:
Abbreviations used in manual
...
Installation
1. INSTALL VANE PUMP ASSEMBLY
(a) Temporarily install the bolt to the vane pump
assembly.
(b) Install the vane pump assembly.
(c) Temporarily install the bolt (B).
(d) Using SST, tighten the 2 bolts.
SST 09249-63010
Torque:Without SST
43 N*m (439 kgf*cm, 32 ft.*lbf)
With SST
29 ...
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DTC B1100/31 Center Airbag Sensor Assembly Malfunction
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The center airbag sensor assembly consists of the center airbag sensor
assembly, safing sensor, drive
circuit, diagnosis circuit and ignition control, etc.
It receives signals from the airbag sensor, judges whether or not the ...