AUDIO AND VISUAL SYSTEM (w/o Navigation System), Diagnostic DTC:01-D6, 01-D7

DTC Code DTC Name
01-D6 No Master
01-D7 Connection Check Error

DESCRIPTION

DTC No. DTC Detection Condition Trouble Area
01-D6*1

Either condition is met:


  • The device that stores (stored) the DTC has (had) been disconnected while the power switch on (IG) or (ACC).

  • The master device has (had) been disconnected when this DTC is stored.

  • Radio receiver assembly power source circuit

  • Power source circuit of the component which has stored this code

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

  • Component which has stored this code

  • Radio receiver assembly
01-D7*2

Either condition is met:


  • The device that stored the code has (had) been disconnected after the engine starts (started).

  • The master device has (had) been disconnected when this DTC is (was) stored.

Tech Tips


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

  • *2: When 210 seconds have elapsed after disconnecting the power supply connector of the master component with the power switch on (IG) or (ACC), this DTC is stored.

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 assembly is the master unit.

  • Be sure to clear and recheck for the 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 ASSEMBLY 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. IDENTIFY COMPONENT WHICH HAS STORED THIS CODE


    1. Enter diagnostic mode.

      A01NF3ZE13

    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
      Stereo component amplifier assembly 440
      Accessory meter assembly 1D4
      Multi-media interface ECU 388
      Air conditioning control panel 1C4

      Tech Tips


      • "P440" set by the stereo component amplifier assembly shown in the preceding illustration as an example.

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


    NEXT

  3. CHECK POWER SOURCE CIRCUIT OF COMPONENT WHICH HAS STORED THIS CODE


    1. Inspect the power source circuit of the component which has stored this code.

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

      Component Table
      Component Proceed to
      Stereo component amplifier assembly

      Stereo component amplifier power source circuit Click here

      Accessory meter assembly

      Accessory meter does not illuminate Click here

      Multi-media interface ECU

      Multi-media interface ECU power source circuit Click here

      Air conditioning control panel

      Air conditioning control panel source circuit Click here


    NEXT

  4. INSPECT RADIO RECEIVER ASSEMBLY


    1. A01NG2QE01
      Text in Illustration
      *1

      Component without harness connected

      (Radio Receiver Assembly)
      *2

      Component without harness connected

      (Radio Receiver Assembly)
      *3

      Component without harness connected

      (Radio Receiver Assembly)

      Disconnect the radio receiver assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G7-5 (ATX+) - G7-15 (ATX-) Always 60 to 80 Ω
      G11-9 (TXM+) - G11-10 (TXM-) Always 60 to 80 Ω
      G9-9 (TX+) - G9-10 (TX-) Always 60 to 80 Ω

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR

    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 assembly and component which has stored this code.


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

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

        OK
        There is no open or short circuit.
        A01NG7BE01

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. REPLACE COMPONENT WHICH HAS STORED THIS CODE


    1. Replace the component which has stored this code with a known good one.


    NEXT

  7. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  8. RECHECK FOR DTC


    1. Recheck for DTCs and check if the same problem occurs again.

      OK
      Malfunction disappears.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

    END