NAVIGATION 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 The device that should be the master has been disconnected after the engine starts.

  • Multi-display power source circuit


  • AVC-LAN circuit between the multi-display and the component which has stored this code


  • Multi-display


  • Component which has stored this code

01-E1

*1

 The AMP device records that the AMP output does not function even while the source device is operating.

Tech Tips

*1: 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 stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs.

  • The multi-display is the master unit.

  • Be sure to clear and recheck 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 procedures.

PROCEDURE


  1. CHECK MULTI-DISPLAY POWER SOURCE CIRCUIT

    Refer to Multi-display Power Source Circuit Click here.

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


    NEXT

  2. INSPECT RADIO RECEIVER


    1. A0163DME01

      Disconnect the radio receiver connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition

      J66-5 (ATX+) -

      J66-15 (ATX-)

      		 Always 60 to 80 Ω

      J63-9 (TX+) -

      J63-10 (TX-)

      		 Always 60 to 80 Ω

    NG

    REPLACE RADIO RECEIVER Click here

    OK

  3. IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE


    1. A01636BE32

      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
      Display Component
      AUDIO H/U Radio receiver
      DSP-AMP Stereo component amplifier
      G/W Gateway ECU
      NAVI Navigation ECU
      CAMERA-C Television camera ECU

      Tech Tips

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


    NEXT

  4. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - COMPONENT WHICH HAS STORED THIS CODE)

    Tech Tips

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


    1. Referring to AVC-LAN Wiring Diagram below, check the AVC-LAN circuit between the multi-display and the component which has stored this code.


      1. Disconnect all connectors between the multi-display and the component which has stored this code.

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

        OK
        There is no open or short circuit.
        A0161DBE01

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE MULTI-DISPLAY


    1. Replace the multi-display with a known good one and check if the same problem occurs again.

      OK
      Same problem does not occur.

    NG

    REPLACE COMPONENT WHICH HAS STORED THIS CODE

    OK

    END