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Toyota Sienna Service Manual: Master Reset/ Voice Processing Device ON Error

Toyota Sienna Service Manual / Navigation / Navigation system / Diagnostic trouble code chart / Master Reset/ Voice Processing Device ON Error

DTC 01-DD Master Reset

DTC 01-E1 Voice Processing Device ON

DESCRIPTION

DTC No.

DTC Detection Condition

Trouble Area

01-DD *1 The device that should be the master has been disconnected after the engine starts.
  • Radio and navigation assembly power source circuit
  •  AVC-LAN circuit between the radio and navigation assembly and the component which has stored this code
  •  Radio and navigation assembly
  •  Component which has stored this code
01-E1 *2 The AMP device records that the AMP output does not function even while the source device is operating.

HINT:

NOTICE:

INSPECTION PROCEDURE

NOTICE: Be sure to read DESCRIPTION before performing the following procedures.

1 CHECK RADIO AND NAVIGATION ASSEMBLY POWER SOURCE CIRCUIT

Refer to the radio and navigation assembly power source circuit.

If the power source circuit is operating normally, proceed to the next step

2 INSPECT RADIO AND NAVIGATION ASSEMBLY

 INSPECT 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

3 IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE

 IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE

  1. Enter the diagnostic mode.
  2.  Press the "LAN Mon" switch to change to "LAN Monitor" mode.
  3.  Identify the component which has stored this code.

Component Table:

Component Table

HINT: "NAVI" is the component which has stored this code in the example shown in the illustration.

4 CHECK HARNESS AND CONNECT

HINT: For details of the connectors, refer to "TERMINALS OF ECU".

  1.  Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the radio and navigation assembly and the component which has stored this code.
  1.  Disconnect all connectors between the radio and navigation assembly and the component which has stored this code.
  2.  Check for an open or short in the AVC-LAN circuit between the radio and navigation assembly and the component which has stored this code.

OK: There is no open or short circuit.

CHECK HARNESS AND CONNEC

5 REPLACE RADIO AND NAVIGATION ASSEMBLY

  1. Replace the radio and navigation assembly with a normal one and check if the same problem occurs again.

OK: Same problem does not occur.

END

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