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 "LAN Mon" switch to change to "LAN Monitor" mode.
- Identify the component shown by the sub-code.
HINT:
- "110 (multi-display)" is the component shown by the sub-code in the example shown in the illustration.
- The sub-code will be indicated by its physical address.
- For the component list, refer to "DIAGNOSIS DISPLAY DETAILED DESCRIPTION".
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 CHECK RADIO AND NAVIGATION ASSEMBLY
- Disconnect the radio and navigation assembly connectors.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
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 "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
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 ...
Radio and Navigation Assembly 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:
DRL Relay Circuit
DESCRIPTION
The Multiplex network body ECU controls the DRL No.2 relay
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
Turn the ignition switch ON and push the intelligent
tester main switch ON.
Sel ...
On-vehicle inspection
1. CHECK RADIATOR RESERVOIR CAP SUBASSEMBLY
a) Measure the valve opening pressure.
(1) If there are water stains or foreign matter on
rubber packings 1, 2 or 3, clean the part(s) with
water and finger scouring.
(2) Check that rubber packings 1, 2 and 3 are not
deformed, cracked or swol ...
Diagnostic trouble code chart
COMMUNICATION DIAGNOSIS:
DVD PLAYER:
CD PLAYER
IN-DASH CD CHANGER
...
