EXPRESSIONS OF IGNITION SWITCH

The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section.

IGNITION SWITCH EXPRESSIONS CHART

Expression / Switch Type	Ignition Switch (position)	Engine Switch (condition)
Ignition Switch off	LOCK	Off
Ignition switch on (IG)	ON	On (IG)
Ignition Switch on (ACC)	ACC	On (ACC)
Engine Start	START	Start

PRECAUTION
1. Before inspecting and repairing the fuel system, disconnect the negative (-) battery cable.
2. Do not smoke or work near fire when handling the fuel system.
3. Keep gasoline away from rubber or leather parts.
DISCHARGE FUEL SYSTEM PRESSURE
CAUTION:
- Perform the following procedures to prevent fuel from spilling out before removing any fuel system parts.
- Pressure will still remain in the fuel line even after performing the following procedures. When disconnecting the fuel line, cover with a shop rag or a piece of cloth to prevent fuel from spraying or spewing out.
1. Disconnecting the fuel pump connector.
  1. Remove the rear seat cushion assy.
  2. Remove the rear floor service hole cover.
  3. Disconnect the fuel pump connector.
  4. Start the engine.
  5. After the engine stops, turn the ignition switch off.
    HINT:
    
    DTC P0171/25 (fuel problem) and/or P0191/49 (fuel pressure sensor signal error) may be detected.
  6. Crank the engine again. Check that the engine does not start.
  7. Remove the fuel tank cap to discharge pressure from the fuel tank.
  8. Disconnect the negative (-) battery terminal cable.
  9. Reconnect the fuel pump connector.
    
    Fig 1: Disconnect Negative (-) Battery Terminal Cable
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. Install the rear floor service hole cover.
  11. Install the rear seat.
FUEL SYSTEM
1. When disconnecting the high fuel pressure line, a large amount of gasoline will spill out, so observe the following procedures:
  1. Discharge the fuel system pressure, (step 3)
  2. Disconnect the fuel pump tube (see Removal & Installation and Disassembly & Reassembly ).
  3. Drain the fuel that remains inside the fuel pump tube.
  4. To protect the disconnected fuel pump tube from damage and contamination, cover it with a plastic bag.
  5. Put a container under the connection part.
    
    Fig 2: Covering Fuel Pump With Plastic Bag
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Observe the following precautions when removing and installing fuel injectors:
  1. Never reuse the O-ring.
  2. When placing a new O-ring on the injector, do not damage the O-ring.
  3. Coat new O-ring with spindle oil or gasoline before installing.
    NOTE: Do not use engine oil, gear oil or brake oil.

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.

Safety Warning

Engine Fuel System: Precaution

Use the Manual With the Right Hardware

When to See a Mechanic

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