Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2004LX 470 V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTNAVIGATION SYSTEMTESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEWDIAGNOSTIC START-UP/FINISH
2004 Lexus LX 470 V8-4.7L (2UZ-FE)
Diagnostic Start-Up/Finish
2004 Lexus LX 470 V8-4.7L (2UZ-FE)SECTION Diagnostic Start-Up/Finish
DIAGNOSTIC START-UP/FINISH
HINT:
- The illustrations may differ depending on the device settings (option, etc.). Therefore, some detailed areas may not be shown exactly same as on the actual vehicle.
- After the ignition switch is turned on, check that the map is displayed before starting the diagnostic mode. Otherwise, some items cannot be checked.
a. There are 2 methods to start diagnostic mode. start the mode by using one of them.
b. Method 1
1. Start the engine.
2. While pressing and holding "INFO" switch, operate "TAIL" switch, OFF -> TAIL -> OFF -> TAIL -> OFF -> TAIL -> OFF.
3. The diagnostic mode starts and "Service Check" screen will be displayed. Service inspection starts automatically and the result will be displayed.
c. Method 2
1. Start the engine.
2. Switch to the "Display Check" screen.
3. From the display adjustment screen, touch the corners of the screen in the following order: upper left -> lower left -> upper left -> lower left -> upper left -> lower left.
4. The diagnostic mode starts and "Service Check" screen will be displayed. Service inspection starts automatically and the result will be displayed.
d. Diagnosis MENU
Pressing the menu switch on the service check screen, diagnostic window will be displayed.
e. There are 2 methods to exit. Use one of them.
1. Turn the ignition switch off.
2. Press the "Display" switch for 3 seconds.
HINT:
- The illustrations may differ depending on the device settings (option, etc.). Therefore, some detailed areas may not be shown exactly same as on the actual vehicle.
- After the ignition switch is turned on, check that the map is displayed before starting the diagnostic mode. Otherwise, some items cannot be checked.
a. There are 2 methods to start diagnostic mode. start the mode by using one of them.
b. Method 1
1. Start the engine.
2. While pressing and holding "INFO" switch, operate "TAIL" switch, OFF -> TAIL -> OFF -> TAIL -> OFF -> TAIL -> OFF.
3. The diagnostic mode starts and "Service Check" screen will be displayed. Service inspection starts automatically and the result will be displayed.
c. Method 2
1. Start the engine.
2. Switch to the "Display Check" screen.
3. From the display adjustment screen, touch the corners of the screen in the following order: upper left -> lower left -> upper left -> lower left -> upper left -> lower left.
4. The diagnostic mode starts and "Service Check" screen will be displayed. Service inspection starts automatically and the result will be displayed.
d. Diagnosis MENU
Pressing the menu switch on the service check screen, diagnostic window will be displayed.
e. There are 2 methods to exit. Use one of them.
1. Turn the ignition switch off.
2. Press the "Display" switch for 3 seconds.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.