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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 640 (ENGINE FUEL SYSTEM (1MZ-FE/3MZ-FE))PRECAUTIONON-VEHICLE INSPECTION
2004 Toyota Matrix XR, FWD, Standard

On-Vehicle Inspection

2004 Toyota Matrix XR, FWD, StandardSECTION On-Vehicle Inspection
WARNING: This page is about a different car, the 2004 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FUEL PUMP OPERATION AND FUEL LEAKS 
    1. When using the hand-held tester:

      Check fuel pump operation.

      1. Connect the hand-held tester to the DLC3.
      2. Turn the ignition switch ON and push the hand-held tester main switch ON.
        NOTE: Do not start the engine.
      3. Select the ACTIVE TEST mode on the hand-held tester.
      4. If you need help to select active test on the hand-held tester, Refer to the hand-held tester is instruction manual.
      5. Turn the ignition switch OFF.
      6. Disconnect the hand-held tester from the DLC3.
    2. When not using the hand-held tester:

      Check fuel pump operation.

      1. Remove the C/OPN relay from the engine room J/B.
      2. Using a service wire, connect terminals FP and +B of the engine room J/B.
        NOTE: Pay close attention to the terminal connecting position to avoid a malfunction.
      3. Turn the ignition switch ON, and check that the fuel pump operates.
        NOTE: Do not start the engine.
    3. Check that there are no fuel leaks after doing maintenance anywhere on the fuel system.
    4. Turn the ignition switch OFF.
    5. Remove the service wire from the engine room J/B.
    6. Install the C/OPN relay to the engine room J/B.
      Fig 1: Identifying C/OPN Relay In Engine Room J/B
      G02892227Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. CHECK FUEL PRESSURE 
    1. Check that the battery positive voltage is above 12 V.
    2. Disconnect the negative (-) terminal cable from the battery.
    3. Purchase a new fuel tube and take out the fuel tube connector from its pipe.

      Fuel tube: Part No. 23801-20190

      Fig 2: Identifying Fuel Tube Connector
      G02892228Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the fuel pipe clamp from the fuel tube connector.
      Fig 3: Removing Fuel Pipe Clamp From Fuel Tube Connector
      G02892229Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Disconnect the fuel tube connector from the fuel pipe by pinching part A with your fingers, as shown.
      CAUTION:
      • Always read the precautions (See PRECAUTION ) before disconnecting the fuel tube connector (quick type).
      • The fuel pipe line may spray fuel as a result of retained pressure that remains in it. Do not allow fuel to be sprayed in the engine compartment.
RENDER: 1.0x

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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.