On-Vehicle Inspection

1. Connect a hand-held tester to the DLC3.
2. Turn the ignition switch ON and hand-held tester main switch ON.
   NOTE: Do not start the engine.
3. Select the active test mode on the hand-held tester.
4. Please refer to the hand-held tester operator's manual for further details .
5. If you have no hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector (See  7 ).
   Fig 1: Connecting Hand-Held Tester To DLC3

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Check that there is pressure in the fuel inlet hose from the fuel filter.

   HINT:

   If there is fuel pressure, you will hear the sound of fuel flowing. If there is no pressure, check these parts:

   • Fusible link
   • Fuses
   • EFI main relay
   • Fuel pump
   • ECM
   • Wiring connections
   Fig 2: Checking Pressure In Fuel Inlet Hose

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Turn the ignition switch to LOCK.
8. Disconnect the hand-held tester from the DLC3.

1. Check the battery positive voltage is above 12 V.
2. Disconnect the negative (-) terminal cable from the battery.
3. Purchase the new No.1 fuel pipe and take out the fuel tube connector from its pipe.

   Part No. 23801-20070

   Fig 3: Identifying Fuel Tube Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove the fuel hose clamp.
   Fig 4: Removing Fuel Hose Clamp

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Disconnect the No.1 fuel pipe (fuel tube connector) from the fuel filter outlet.
   CAUTION:

   • Perform disconnecting operations of the fuel tube connector (quick type) after observing the precautions (See PRECAUTION ).
   • As there is retained pressure in the fuel pipe line, prevent it from splashing inside the engine compartment.
   Fig 5: Disconnecting No.1 Fuel Pipe

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Install SST (pressure gauge) as shown in Fig 6 ,by using SST and fuel tube connector.

   SST 09268-41047, 09268-45014

7. Wipe off any splattered gasoline.
8. Reconnect the hand-held tester to the DLC3 (See  1 )
9. Reconnect the negative (-) terminal cable to the battery.
10. Measure the fuel pressure.

    Fuel pressure: 

    301 - 347 kPa (3.1 - 3.5 kgf/cm ²  , 44 - 50 psi) 

    If pressure is high, replace the fuel pressure regulator.

    If pressure is low, check these parts:

    • Fuel hoses and connections
    • Fuel pump
    • Fuel filter
    • Fuel pressure regulator
    Fig 6: Installing SST

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
11. Disconnect the hand-held tester from the DLC3.
12. Start the engine.
13. Measure the fuel pressure at idle.

    Fuel pressure: 

    301 - 347 kPa (3.1 - 3.5 kgf/cm ²  , 44 - 50 psi) 

14. Stop the engine
15. Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.

    Fuel pressure: 

    147 kPa (1.5 kgf/cm ²  , 21 psi) or more 

    If pressure is not as specified, check the fuel pump, pressure

16. After checking fuel pressure, disconnect the negative (-) terminal cable from the battery and carefully remove the SST and fuel tube connector to prevent gasoline from splashing.

    SST 09268-41047, 09268-45014

17. Reconnect the No.1 fuel pipe (fuel tube connector).
    CAUTION: Perform connecting operations of the tube connector (quick type) after observing the precautions (See PRECAUTION ).
    Fig 7: Connecting No.1 Fuel Pipe

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
18. Surely install the hose clamp to the fuel filter with "click" sound.
19. After installing the clamp, check that the clamp is fixed by pulling up to the clamp.
20. Reconnect the negative (-) terminal cable to the battery.
21. Check for fuel leaks.

Fig 8: Installing Clamp

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using an ohmmeter, measure the resistance between terminals 4 and 5.

Resistance: 0.2 - 3.0 Ω at 20°C (68°F) 

If the resistance is not as specified, replace the fuel pump.

Fig 9: Inspecting Fuel Pump Resistance

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Connect the positive (+) lead from the battery to terminal 4 of the connector, and the negative (-) lead to terminal 5. Check that the fuel pump operates.

Fig 10: Inspecting Fuel Pump Operation

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If operation is not as specified, replace the fuel pump or lead wire.