AUDIO AND VISUAL SYSTEM, Diagnostic DTC:01-DD, 01-E1

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

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 receiver power source circuit

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

  • Radio receiver

  • Component which has stored this code

01-E1

*2

 The AMP device determines that the AMP output does not function even while the source device operates.

Tech Tips

*1: If the ignition switch is turned off after idling for 60 seconds, this DTC may be stored when the engine is started again (key type ignition switch only).

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

Note


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

  • The radio receiver is the master unit.

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

INSPECTION PROCEDURE

Note

Be sure to read Description before performing the following procedure.

PROCEDURE


  1. CHECK RADIO RECEIVER POWER SOURCE CIRCUIT

    Tech Tips

    Refer to Radio Receiver Power Source Circuit Click here.

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


    NEXT

  2. INSPECT RADIO RECEIVER


    1. A017C4FE20
      Text in Illustration
      *a

      Component without harness connected

      (Radio Receiver)

      Disconnect the radio receiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E24-9 (TXM+) - E24-10 (TXM-) Always 60 to 80 Ω

    NG

    REPLACE RADIO RECEIVER Click here

    OK

  3. IDENTIFY COMPONENT WHICH HAS STORED THIS CODE


    1. Enter diagnostic mode.

      A017F5QE13

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

    3. Identify the component which has stored this code.

      Component Table
      Component Physical Address
      Multi-media interface ECU 388

      Tech Tips


      • The physical address "P440" shown in the above example indicates the stereo component amplifier.

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


    NEXT

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

    Tech Tips

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


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


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

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

        OK
        There is no open or short circuit.
        A017C7AE13

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE RADIO RECEIVER


    1. Replace the radio receiver with a known good one.


    NEXT

  6. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  7. RECHECK FOR DTC


    1. Recheck for DTCs and check if the same DTC is output again.

      OK
      No DTCs are output.

    NG

    REPLACE COMPONENT WHICH HAS STORED THIS CODE

    OK

    END