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AUDIO AND VISUAL SYSTEM (for Radio Receiver Type), Diagnostic DTC:01-DD, 01-E1

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DTC Code DTC Name
01-DD Master Reset
01-E1 Voice Processing Device ON Error
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DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
01-DD*1 The device that should be the master has been disconnected after engine start.

  • Radio receiver power source circuit


  • AVC-LAN circuit between the radio receiver assembly and the component which has stored this code


  • Radio receiver 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 operates.
Tip:

  • *1: This code may be stored if the engine is started and the ignition switch is turned to the start position again.

  • *2: Even if no fault is present, this trouble code may be stored depending on the battery condition or engine start voltage.

Note:

  • Before starting troubleshooting, be sure to clear DTCs to clear codes stored due to the reasons described in the Hint above. Then, check for DTCs and troubleshoot according to the output DTCs.


  • The radio receiver assembly is the master unit.


  • Be sure to clear and recheck for DTCs after the inspection is completed to confirm that no DTCs are output.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

Be sure to read Description before performing the following procedures.

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PROCEDURE


  1. Click here

    CHECK RADIO RECEIVER POWER SOURCE CIRCUIT


    1. Refer to Radio Receiver Power Source Circuit (Click here).

      Tip:

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


  2. Click here

    INSPECT RADIO RECEIVER ASSEMBLY


    1. A01IQMGE01

      Disconnect the H103 radio receiver assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H103-9 (TXM+) - H103-10 (TXM-) Always 60 to 80 Ω
      Table 1. Text in Illustration
      *1

      Component without harness connected

      (Radio Receiver Assembly)

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    IDENTIFY COMPONENT WHICH HAS STORED THIS CODE


    1. A01IS0KE16

      Enter the diagnostic mode.

    2. Press the preset switch "channel 3" to change to "Detailed Information Mode".

    3. Identify the component which has stored this code.

      Table 2. Component Table
      Component Physical Address
      Radio receiver assembly 190
      Multi-media interface ECU 388

      • "440 (stereo component amplifier assembly)" is the component which has stored this code in the example shown in the illustration.

      • For details of the DTC display, refer to DTC Check/Clear (Click here).


  4. Click here

    CHECK COMPONENT WHICH HAS STORED THIS CODE


    1. Select the component which has stored this code.

      Tip:

      The "Bluetooth" handsfree module is built into the radio receiver assembly. If there is a problem between the "Bluetooth" handsfree module and radio receiver assembly, replace the radio receiver assembly.

      Table 3. Component Table
      Component Proceed to
      Except radio receiver assembly A
      Radio receiver assembly B

  5. Click here

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - COMPONENT WHICH HAS STORED THIS CODE)

    Tip:

    For details of connectors, refer to Terminals of ECU (Click here).


    1. Referring to the wiring diagram, check the AVC-LAN circuit between the radio receiver assembly and the component which has stored this code.


      1. Disconnect all connectors between the radio receiver assembly and the component which has stored this code.

      2. Check for an open or short in the AVC-LAN circuit between the radio receiver assembly and the component which has stored this code.

        OK
        There is no open or short circuit.

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    REPLACE RADIO RECEIVER ASSEMBLY


    1. Replace the radio receiver assembly (Click here).

      OK
      The same problem does not occur.

  7. Click here

    REPLACE RADIO RECEIVER ASSEMBLYClick here

  8. Click here

    REPLACE RADIO RECEIVER ASSEMBLYClick here

  9. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. Click here

    END

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    REPLACE COMPONENT WHICH HAS STORED THIS CODE