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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 4 (AUTOMATIC TRANSMISSION ELECTRONIC CONTROLLED (ECT) - U341F - DIAGNOSTICS)MECHANICAL SYSTEM TESTS
2004 Toyota Matrix XR, FWD, Standard

Mechanical System Tests

2004 Toyota Matrix XR, FWD, StandardSECTION Mechanical System Tests
WARNING: This page is about a different variant/trim than selected.
  1. PERFORM MECHANICAL SYSTEM TESTS 
    1. Measure the stall speed.

      The object of this test is to check the overall performance of the transaxle and engine by measuring the stall speeds in the D and R positions.

      NOTE:
      • Do the test at normal operating ATF temperature 50 to 80 °C (122 to 176 °F). 
      • Do not continuously run this test for longer than 5 seconds. 
      • To ensure safety, do this test in a wide, clear level area which provides good traction. 
      • The stall test should always be carried out in pairs. One technician should observe the conditions of wheels or wheel stoppers outside the vehicle while the other is doing the test. 
      1. Chock the 4 wheels.
      2. Connect an OBD II scan tool or hand-held tester to the DLC3.
      3. Fully apply the parking brake.
      4. Keep your left foot pressed firmly on the brake pedal.
      5. Start the engine.
      6. Shift into the D position. Fully press down the accelerator pedal with your right foot. Quickly read the stall speed at this time.

        Stall speed: 2,550 +/- 150 rpm 

      7. Do the same test in R position.

        Stall speed: 2,550 +/- 150 rpm 

      Evaluation: 

      Fig 1: Problem And Cause Table
      G02915704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. NOTE:
      • Do the test at normal operating ATF temperature 50 to 80 °C (122 to 176 °F). 
      • Be sure to allow 1 minute interval between tests. 
      • Take 3 measurements and take the average value. 
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.