Section 194 (LEXUS Navigation System): Pre-Check

WARNING: This page is about a different car, the 2004 Lexus GS 430 and 2004 Lexus GS 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: Pre-Check Diagnosis Display
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1. DIAGNOSIS START-UP To start the diagnosis menu, there are 3 ways: using a 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.
3. START-UP BY SWITCH OPERATION (touch panel)
  1. Vehicle speed is 0 km/h (0 mph).
  2. Parking brake switch is pressed.
  3. Press the "INFO" switch to display the Screen Adjustment screen.
    
    Fig 2: Identifying Info Switch
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  4. Repeatedly touch the upper and lower bottom parts of the left end of the screen 3 times.
    
    Fig 3: Identifying Concealed Touch Display
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4. FINISHING DIAGNOSIS SYSTEM MODE Turn the ignition switch from ACC to OFF to finish the mode. If it is started by switch operation.
SERVICE CHECK MODE
HINT:

Service Check Mode is operated as follows.

Fig 4: Service Check Mode Display
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Service Check Mode
1. Start the Diagnosis System.
  
  Fig 5: Service Check Mode Diagnosis System Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 6: Service Check Mode Display
  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 the information of "Current DTC Notification" (the Unit Check the LAN Check information that will be displayed on the screens.).
2. Read Check Result
  
  Fig 7: Service Check Mode Check 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.
  Fig 8: Identifying Unit Check Mode
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 9: Identifying LAN Check Mode
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3. "EXCH", "CHEK" and "Old" can be used as switches to activate "LAN Check Mode" and "Unit Check Mode" for detail information. Check troubled parts of the components in these modes by referring to the DTC code list.
  
  Fig 10: DTC Code Description Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- Detecting Unit DTC activates the Unit Check Mode on the screen.
- Detecting no LAN DTC activates the LAN Check Mode on the screen.
- Use the displayed switch to change to the Unit Check Mode and the LAN Check Mode.
- The LAN Check Mode chooses and displays the LAN DTC out of DTC of components identified as "CHEK" in the Service Check.
- In the Unit Check Mode, DTC which is identified as "EHCK" in the Service Check, is displayed as classified into Current DTC and Past DTC.
DISPLAY CHECK MODE
HINT:

Display Check Mode is operated as follows.

Fig 11: Display Check Mode Display Chart
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Fig 12: Display Check Display
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1. Display Check Mode
  
  Fig 13: Display Check Mode 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 14: Identifying Color Bar Display
    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 Touch Switch Check
  1. Start the Diagnosis system.
  2. Select "MENU".
  3. Select "Display Check".
  4. Select "Touch Switch Check".
  5. Touch the screen and make sure that every line reacts to the touch.
    
    Fig 15: Identifying Touch Switch Display
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  HINT:
  
  After the Touch Switch Check for vertical lines, press "Next" to check horizontal lines.
  
  Fig 16: Identifying Panel Switch Display
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Display Panel Switch Check
  1. Start the Diagnosis system.
  2. Select "MENU".
  3. Select "Display Check".
  4. Select "Panel Switch Check".
  5. Press each switch and make sure that it corresponds to the display on the screen.
    
    Fig 17: Display Menu Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. 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 into the display.
    
    Fig 18: Identifying Vehicle Signal Check Display
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  HINT:
  
  Vehicle signal data is updated every 1 second.
NAVIGATION CHECK MODE
HINT:

Navigation Check Mode is operated as follows.

Fig 19: Navigation Check Mode Display Chart
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Fig 20: Navigation Check Display

Navigation Check Mode

Fig 21: Navigation Check Mode Description Table
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HINT:
- In the Navigation Check mode, the checks mentioned above can be conducted.
- The Navigation ECU operates each Navigation Check screen.
  
  Fig 22: GPS Information Display
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
GPS Information
1. Start the Diagnosis system.
2. Select "MENU".
3. Select "Navigation Check".
4. Select "GPS Information".
5. Check the GPS-related information.
  
  Fig 23: GPS Display Data Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Measurement Status: /*5

Fig 24: Measurement Status Table
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Status of Wave Reception: /*6

Fig 25: Status Of Wave Reception Table
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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 into the navigation ECU.
  
  Fig 26: Vehicle Sensors Display
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 27: Vehicle Sensors Display Table
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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 28: Identifying Navigation Color Bar Display
  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 29: Identifying Parts Information Display
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Memory/ Copy/ Paste
HINT:

This function is not available.

Fig 30: Identifying Memory/ Copy/ Paste Display
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