Toyota RAV4 manuals

Toyota Sienna Service Manual: Radio Receiver Communication Error

INSPECTION PROCEDURE

1 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE

  1. Enter the diagnostic mode

IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE

  1. Press the preset switch "3" to change to "Detailed Information Mode".
  2.  Identify the component shown by the sub-code.

HINT:

2 CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE

  1. 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:

Component

Proceed to

Stereo component amplifier (440) Stereo component amplifier power source circuit
Television display assembly (1B0) Television display assembly power source circuit

3 INSPECT RADIO RECEIVER

INSPECT RADIO RECEIVER

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

Standard resistance

Standard resistance

*1: 10 Speaker System

4 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - COMPONENT SHOWN BY SUB-CODE)

HINT:

  1.  Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the radio receiver and the component shown by the sub-code.
  1.  Disconnect all connectors between the radio receiver and the component shown by sub-code.
  2. Check for an open or short in the AVC-LAN circuit between the radio receiver and the component shown by the sub-code.

OK: There is no open or short circuit.

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - COMPONENT SHOWN BY SUB-CODE)

5 REPLACE COMPONENT SHOWN BY SUB-CODE

  1. 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

Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter
DESCRIPTION This circuit is necessary for the ASL (Auto Sound Leveliser) built into the stereo component amplifier. Speed signals are received from the combination meter and used for the ASL. ...

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" ...

Other materials:

Differential oil
Adjustment 1. INSPECT DIFFERENTIAL OIL (a) Stop the vehicle on the level place. (b) Remove the differential filler plug and gasket. (c) Check that the oil surface is within 5 mm (0.20 in.) from the lowest position of the inner surface of the differential filler plug opening. NOTICE: ...

Automatic Light Control Sensor Circuit
DESCRIPTION The Multiplex network body ECU receives the signal from the automatic light control sensor. HINT: DTC code is output when malfunction of automatic light control sensor or open or short of automatic light control sensor circuit occurs. WIRING DIAGRAM INSPECTION PROCEDURE ...

Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. Turn the engine switch to the “LOCK” position (vehicles without a smart key system) or off (vehicles with a smart key system). Open the fuse box cover. ...

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