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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 706 (ENGINE CONTROL SYSTEM (SFI) (3MZ-FE))INSPECTION
2004 Toyota Matrix XR, FWD, Standard

Section 706 (Engine Control System (SFI) (3MZ-FE)): Inspection

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection
WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT MASS AIR FLOW METER 
    1. Check the output voltage.
      1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
      2. Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-) tester probe to terminal E2G.
      3. Blow air into the MAF meter, and check that the voltage fluctuates.
    2. Measure the resistance between terminals 4 (THA) and 5 (E2).

      Standard: 

    SPECIFIED CONDITIONS

    Condition Specified Condition
    -20°C (-4°F) 13.6 to 18.4 kΩ
    20°C (68°F) 2.21 to 2.69 kΩ
    60°C (140°F) 0.493 to 0.667 kΩ

    If the result is not as specified, replace the MAF meter.

    Fig 1: Inspecting Mass Air Flow Meter
    G02852845Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY 
    1. Measure the resistance between the terminals.

      Standard:  6.9 to 7.9Ω at 20°C (68°F)

      If the result is not as specified, replace the OCV assy.

    2. Connect the battery's positive (+) lead to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.
      Fig 2: Connecting Battery To Terminals
      G02852846Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE: Confirm that the valve moves freely and does not become stuck in any position. 

    If necessary, replace the OCV assy.

    If the valve cannot return properly because of foreign matter, a small pressure leak in the advanced direction may occur and a DTC will be output.

  3. INSPECT ACCELERATOR PEDAL ASSY (ACCELERATOR PEDAL POSITION SENSOR) 
    1. Measure the resistance between the terminals.

      Standard: 

    TESTER CONNECTION SPECIFIED CONDITION

    Tester Connection Specified Condition
    2 (VPA2) - 3 (EP1) 5.0 kΩ or less
    5 (VPA1) - 1 (EP2) 5.0 kΩ or less
    6 (VCP1) -3 (EP1) 2.25 to 4.75 kΩ
    4 (VCP2) - 1 (EP2) 2.25 to 4.75 kΩ
    Fig 3: Inspecting Accelerator Pedal Assy (Accelerator Pedal Position Sensor)
    G02852847Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If the result is not as specified, replace the pedal assy.

  4. INSPECT THROTTLE BODY ASSY 
    1. Measure the resistance between the terminals.

      Resistance: 

    TESTER CONNECTION SPECIFIED CONDITION

    Tester Connection Condition Specified Condition
    2 (M+) - 1 (M-) 20°C (68°F) 0.3 to 100Ω
    5 (VC) - 3 (E2) 20°C (68°F) 1.2 to 3.2 kΩ

    If the result is not as specified, replace the throttle body assy.

    Fig 4: Inspecting Throttle Body Assy
    G02852848Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    1. Measure the resistance between the terminals.

      Standard: 

    SPECIFIED CONDITION

    Condition Specified Condition
    Approx. 20°C (68°F) 2.32 to 2.59 kΩ
    Approx. 80°C (176°F) 0.310 to 0.326 kΩ

    If the result is not as specified, replace the sensor.

    Fig 5: Inspecting Engine Coolant Temperature Sensor
    G02852849Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.