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Home >> Toyota >> 2003 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 298 (Power Seat Control System) >> Power Seat Control System >> Inspection >> Step 13 - Inspect Lumbar Support Motor Operation
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Step 13 - Inspect Lumbar Support Motor 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 and the negative (-) lead to terminal 2, check that the lumbar support moves to release side.
    Fig 1: Testing Lumbar Support Motor (1 Of 2)
    G01897897Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Reverse the polarity, check that the lumbar support moves forward.
    Fig 2: Testing Lumbar Support Motor (2 Of 2)
    G01897898Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If operation is not as specified, replace the lumber support adjuster.