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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 425 (POWER SEAT CONTROL SYSTEM)POWER SEAT CONTROL SYSTEMINSPECTIONSTEP 8 - INSPECT FRONT TILT MOTOR PTC THERMISTOR OPERATION
2004 Toyota Matrix XR, FWD, Standard

Step 8 - Inspect Front Tilt Motor PTC Thermistor Operation

2004 Toyota Matrix XR, FWD, StandardSECTION Step 8 - Inspect Front Tilt Motor PTC Thermistor Operation
WARNING: This page is about a different car, the 2002 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect the positive (+) lead from the battery to terminal 1, the positive (+) lead from the ammeter to terminal 2 and the negative (-) lead to the battery negative (-) terminal, then move the seat cushion to the highest position.
  2. Continue to apply voltage, check that the current changes to less than 1 ampere within 4 to 90 seconds.
    Fig 1: Testing Front Tilt Motor PTC Thermistor (1 Of 2)
    G01897889Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Disconnect the leads from the terminals.
    Fig 2: Testing Front Tilt Motor PTC Thermistor (2 Of 2)
    G01897890Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, check that the seat cushion begins to descend.

If operation is not as specified, replace the seat adjuster.

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