Section 778 (LEXUS Navigation System - Diagnosis): Pre-Check

WARNING: This page is about a different car, the 2004 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSIS SYSTEM MODE
HINT:

Diagnosis system mode is operated as follows

Fig 1: Diagnosis System Mode Operation
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1. DIAGNOSIS START-UP
  To start the diagnosis menu, there are 2 ways: using diagnosis check wire and using a switch
2. START-UP BY SWITCH OPERATION (light control switch)
  1. Vehicle speed is 0 Km/h (0 mph)
  2. Parking brake switch is pressed
  3. While pressing "INFO" switch, by turning the light control switch to OFF, TAIL, OFF, TAIL and OFF the system is started up
    
    Fig 2: Identifying "Info" Switch
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 3: Display Table
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  HINT:
  - When Diagnosis system starts, Service check screen is displayed and the service check begins.
  - Select MENU to display diagnosis check menu
3. FINISHING DIAGNOSIS SYSTEM MODE
  Turn the ignition switch form ACC to OFF to finish the mode. If it is started of switch operation.
SERVICE CHECK MODE
HINT:

Service check mode is operated as follows

Fig 4: Service Check Mode Operation
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1. System Check Mode
  1. Start the Diagnosis system
    
    Fig 5: System Check Mode Diagnosis Table
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    Fig 6: Identifying System Check Mode
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    
    service check displays the check results based on the information obtained form each components response to "System Check Execution" and "Diagnosis memory request" and the information of "Current DTC Notification" (the Unit Check that will be displayed on the next screens.)
  2. Read check result
    
    Fig 7: Result Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    - After repair and check press "Code CLR" for more then 3 sec to delete diagnosis memory
    - After deleting diagnosis memory, press "Recheck" and make sure "OK" is displayed on the screen
  3. "EXCH", "CHEK" and "OLD" can be used as switches to activate "Unit check mode" for detail information. check troubled parts of the components in these modes by referring to the DTC code list.
    
    Fig 8: Identifying Unit Check Mode
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 9: Unit Check Mode Display Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    - Detecting Unit DTC activates the Unit check mode on the screen.
    - IN the Unit check Mode, DTC which is identified as "Check" in the service check is displayed as classified in to current DTC and Past DTC.
2. LAN Monitor
  1. Start the Diagnosis system
    
    Fig 10: LAN Monitor Display
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 11: LAN Monitor Diagnosis Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    
    Service Check displays the check results based on the information obtained from each component's response to "System check Execution: and Diagnosis memory request" and information of "Current DTC Notification" (the LAN Monitor the will be displayed on the next screens.).
  2. Read check result
    
    Fig 12: LAN Monitor Result Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    - After repair and check press, "code CLR" for more than 3 Sec, to delete diagnosis memory
    - After deleting diagnosis memory, press "Recheck" and make sure "OK" is displayed on the screen
  3. "CHEK" can be used as switches to activate "LAN monitor" for detail information, Check troubled parts of the components in these modes by referring to the DTC code list
    
    Fig 13: LAN Monitor Display
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 14: LAN Monitor Display Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    
    Detecting no LAN DTC activate the LAN monitor on the screen
3. DISPLAY CHECK MODE
  HINT:
  
  display check mode is operated as follows
  
  Fig 15: Display Check Mode Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Display Check mode
    
    Fig 16: Identifying Display Check Mode Screen
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 17: Check Mode Display Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    
    In display check mode, above checks can be performed
  2. Display color Bar check
    1. Start the Diagnosis system
    2. Select "MENU"
    3. Select "Display Check"
    4. Select" Color Bar check"
    5. Make sure that each color name is corresponding to each color on the bar
      
      Fig 18: Checking Display Color Bar
      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      
      HINT:
      
      Select Black, red, Green, Blue, White and Stripe to display selected colors and stripe on the entire screen
    6. Compare with the color Bar check in the Navigation check and make sure that no difference is found
  3. Display remote Commander check
    1. Start the diagnosis system
    2. Select "MENU"
    3. Select "Display Check"
    4. Select" Color Bar check"
    5. Press each switch and make sure that it corresponds to the display on the screen
      
      Fig 19: Checking Display Remote Commander
      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. Display Vehicle Signal Check
    1. Start the diagnosis system
    2. Select "MENU"
    3. Select "Display Check"
    4. Select" "Vehicle Signal check"
    5. Check the status of the vehicle signal (Battery. IG, PKB, SPEED, TAIL, ADIM/TCAN) loaded in to the display
      
      Fig 20: Checking Display Vehicle Signal
      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    HINT:
    
    Vehicle signal data is updated every 1 second
4. NAVIGATION CHECK MODE
  HINT:
  
  Navigations check mode is operated as follows.
  
  Fig 21: Navigations Check Mode Operation
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  1. Navigation Check mode
    
    Fig 22: Checking Navigation Mode
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
  2. In the Navigation check mode, the checks mentioned above can be conducted
  3. The Navigation ECU operates each Navigation Check screen
    
    Fig 23: Navigation Check Mode Display Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. GPS Information
6. Start the diagnosis system
7. Select "MENU"
8. Select "Navigation Check"
9. Select" "GPS information"
10. Check the GPS-related information
  
  Fig 24: Identifying GPS Information
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 25: GPS Display Table (1 Of 3)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Status of Wave Reception:/*5
  
  Fig 26: GPS Display Table (2 Of 3)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Measurement Status:/*6
  
  Fig 27: GPS Display Table (3 Of 3)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Vehicle sensors
1. Start the Diagnosis system
2. Select "Menu"
3. Select: Navigation check"
4. Select" Vehicle sensors"
5. Check the vehicle signals (ACC, REV, SPD) and the output signal of the gyro sensor introduced in to the navigation ECU
  
  Fig 28: Checking Vehicle Sensors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 29: Vehicle Sensors Display Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Navigation color Bar check
1. Start the Diagnosis system
2. Select "Menu"
3. Select: Navigation check"
4. Select" Color Bar Check"
5. Make sure that the set color matches the display color
6. Compare with the color Bar Check in the Display check and make sure that no difference is found
  
  Fig 30: Checking Navigation Color Bar
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Parts information
1. Start the Diagnosis system
2. Select "Menu"
3. Select: Navigation check"
4. Select" Parts information "
5. Check the program and disc version
  
  Fig 31: Checking Parts Information
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Memory/Copy/Paste
HINT:

This function is not available.

Fig 32: Checking Memory/Copy/Paste
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