Navigation System (For Navigation Receiver Type) Dtc Check / Clear

  1. CHECK DTC (CHECK USING GTS)

  1. CLEAR DTC (CLEAR USING GTS)

  1. START DIAGNOSTIC MODE

  1. FAILURE DIAGNOSIS

  1. SYSTEM CHECK

  1. CHECK DTC (CHECK USING SYSTEM CHECK MODE SCREEN)

  1. DTC CLEAR/RECHECK (CLEAR USING SYSTEM CHECK MODE SCREEN)

  1. FINISH DIAGNOSTIC MODE

Navigation System (For Navigation Receiver Type) -- Dtc Check / Clear



CHECK DTC (CHECK USING GTS)

  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG).

  3. Turn the GTS on.

  4. Enter the following menus: Body Electrical / Navigation System / Trouble Codes.

  5. Check for DTCs, and then write them down.

  6. Check the details of the DTC(s).


CLEAR DTC (CLEAR USING GTS)

  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG).

  3. Turn the GTS on.

  4. Enter the following menus: Body Electrical / Navigation System / Trouble Codes.

  5. Clear the DTCs.


START DIAGNOSTIC MODE
HINT:
  1. Illustrations may differ from the actual vehicle screen depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle screen.
  2. After the engine switch is turned on (IG), check that the map is displayed before starting diagnostic mode. Otherwise, some items cannot be checked.

  1. Start the engine.

  2. While pressing and holding the "AUDIO" switch of the navigation receiver assembly, operate the light control switch: Off → Tail → Off → Tail → Off → Tail → Off.



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  3. Diagnostic mode starts and the "Service Menu" screen will be displayed. Service inspection starts automatically and the result will be displayed.

    Text in Illustration
    *A
    		for LHD
    *B
    		for RHD

FAILURE DIAGNOSIS


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  1. The "Failure Diagnosis" screen will be displayed by pressing the "Failure Diagnosis" switch on the "Service Menu" screen.


SYSTEM CHECK


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  1. The "System Check Mode" screen will be displayed by pressing the "System Check" switch on the "Failure Diagnosis" screen.


CHECK DTC (CHECK USING SYSTEM CHECK MODE SCREEN)
HINT:
When "NCON" is displayed for all devices connected using the AVC-LAN, or when all device names are not displayed, check if there is a short circuit in the AVC-LAN or devices connected to the AVC-LAN. Repair or replace parts as necessary (LandCruiser RM0000019NG0YJX.html).


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  1. System check mode screen description

    Screen Description
    Display
    		Content
    *a: Device Name List No. 1
    1. Device Name List No. 1 displays some of the devices that make up the navigation system.
    2. The names of the components from Device Name List No. 1 are shown in the following table.
    *b: Check Result
    		Result codes for all devices are displayed.
    *c: Memory Clear
    1. Present and history DTCs and registered connected device names are cleared.
    2. Press the "Memory CLR" switch for 3 seconds.
    *d: Recheck
    1. A system check will be performed again after the memory is cleared.
    2. The "Recheck" switch will dim during a system check.
    *e: Device Name List No. 2
    1. Device Name List No. 2 displays some of the devices that make up the navigation system.
    2. The names of the components from Device Name List No. 2 are shown in the following table.
    *a: Device Name List No. 1 Description
    Name
    		Component
    		Connection Method
    AVN
    		Navigation receiver assembly
    		-
    Rr-TV
    		Television display assembly*1
    		Communication line for AVC-LAN
    DSP-AMP
    		Stereo component amplifier assembly
    		Communication line for AVC-LAN
    CAMERA-C
    		Parking assist ECU*2
    		Communication line for AVC-LAN
    1. *1: w/ Rear Seat Entertainment System
    2. *2: w/ Side Monitor System
    *b: Check Result Description
    Result
    		Meaning
    		Action
    OK
    		The device does not respond with a DTC.
    		-
    DETAIL
    		The device responds with a DTC.
    		Look up the DTC in "Unit Check Mode".
    NCON
    		The device was previously present, but does not respond in diagnostic mode.
    		- Check power supply wire harness of the device.
    - Check the AVC-LAN of the device.
    NRES
    		The device responds in diagnostic mode, but gives no DTC information.
    		- Check power supply wire harness of the device.
    - Check the AVC-LAN of the device.
    *e: Device Name List No. 2 Description
    Name
    		Component
    		Connection Method
    AUX/VTR
    		No. 1 stereo jack adapter assembly
    		Vehicle wire harness
    VTR/RR
    		Video (video adapter) terminal
    		Vehicle wire harness


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  2. Unit check mode screen description

    Screen Description
    Display
    		Content
    *a: Device name
    		Target device
    *b: History DTC
    		Diagnostic memory results and stored DTCs are displayed.
    *c: Current DTC
    		DTCs output in the service check are displayed.
    *d: DTC
    		DTC (Diagnostic Trouble Code)
    *e: Timestamp
    		The time and date of history DTCs are displayed. (The year is displayed in 2-digit format.)
    *f: Diagnosis clear switch
    		Pushing this switch for 3 seconds clears the diagnostic memory data of the target device. (Both response to diagnostic system check result and the displayed data are cleared.)
    HINT:
    1. This screen is updated once per second.
    2. A maximum of 6 DTCs can be displayed for history and present DTCs.


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  3. Read the system check result.

    1. If the check result is "DETAIL", touch the displayed check result to view the results on the "Unit Check Mode" screen and record them.

      NOTICE:
      A maximum of 6 DTCs can be displayed for history and present DTCs on the "Unit check mode" screen. Therefore, when 6 DTCs are displayed, troubleshoot those DTCs first and then check the "Unit check mode" screen again to see if any other DTCs are displayed.
      HINT:
      1. When all results are "OK", this means that no DTCs are output.
      2. When proceeding to view the results of another device, press the "Back" switch to return to the "System Check Mode" screen. Repeat the step above to view the results of other devices.

    2. Check the details of the DTC(s) (LandCruiser RM0000011BO0ONX.html).


DTC CLEAR/RECHECK (CLEAR USING SYSTEM CHECK MODE SCREEN)


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  1. Clear DTCs

    1. Press the "Memory CLR" switch for 3 seconds.

    2. Confirm that the check results are cleared.

      HINT:
      1. To clear the DTCs for a specific device, clear the DTCs using the "Unit Check Mode" screen.
      2. When clearing the DTCs using the "Unit Check Mode" screen, press the "Code CLR" switch for 3 seconds.


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  2. Recheck

    1. Press the "Recheck" switch.



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    2. Confirm that all diagnostic codes are "OK" when the check results are displayed. If a code other than "OK" is displayed, troubleshoot again.

      HINT:
      When the DTCs are cleared using the "Unit Check Mode" screen, press the "Back" switch to return to the "System Check Mode" screen and perform this operation.

FINISH DIAGNOSTIC MODE

  1. Turn the engine switch off.