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Toyota Sienna Service Manual: Stereo Component Amplifier Communication Error

Toyota Sienna Service Manual / Navigation / Navigation system / Diagnostic trouble code chart / Stereo Component Amplifier Communication Error

INSPECTION PROCEDURE

1 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE

 IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE

  1. Enter the diagnostic mode.
  2.  Press the "LAN Mon" switch to change to "LAN Monitor" mode.
  3.  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:

3 CHECK RADIO AND NAVIGATION ASSEMBLY

 CHECK RADIO AND NAVIGATION ASSEMBLY

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

Standard resistance

Standard resistance

4 CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - COMPONENT SHOWN BY SUB-CODE)

HINT:

  1.  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.
  1.  Disconnect all connectors between the stereo component amplifier and the component shown by sub-code.
  2.  Check for an open or short in the AVC-LAN circuit between the stereo component amplifier and the component shown by the sub-code.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - COMPONENT SHOWN BY SUB-CODE)

OK: There is no open or short circuit.

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

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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 ...

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