Vehicle Damage Warnings
PRECAUTION1. BEFORE WORKING ON FUEL SYSTEM, DISCONNECT NEGATIVE (-) TERMINAL CABLE FROM BATTERY
HINT: Any diagnostic trouble code retained by the computer will be erased when the negative (-) terminal cable is removed from the battery.
Therefore, if necessary, read the diagnosis before removing the negative (-) terminal cable from the battery.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME WHEN WORKING ON THE FUEL SYSTEM
3. KEEP GASOLINE AWAY FROM RUBBER OR LEATHER PARTS
4. AIR INDUCTION SYSTEM
a. Separation of the engine oil dipstick, oil filler cap, PCV hose, etc. may cause the engine to run out of tune.
b. Disconnection, looseness or cracks in the parts of the air induction system between the throttle body and cylinder head will allow air suction and cause the engine to run out of tune.
5. Check that there are no fuel leaks after doing maintenance anywhere on the fuel system.
1. Connect a LEXUS hand-held tester to the DLC3.
2. Turn the ignition switch ON and push the LEXUS hand-held tester main switch ON.
NOTE: Do not start the engine.
3. Select the active test mode on the LEXUS hand-held tester.
4. Please refer to the LEXUS hand-held tester operator's manual for further details.
5. If you have no LEXUS hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector.
6. Check that there are no leaks from any part of the fuel system.
7. Turn the ignition switch OFF.
8. Disconnect the LEXUS hand-held tester from the DLC3.