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Roof Drive Motor: Inspection

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT LUGGAGE DOOR DRIVE GEAR ASSEMBLY (ROOF LOCK MOTOR) 
    1. Apply battery voltage to the drive gear terminals and check operation of the sliding roof drive gear RH.

      OK 

      MEASUREMENT CONDITION CHART

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 1
      Battery positive (-) → Terminal 2      		 Turns clockwise
      Battery positive (+) → Terminal 2
      Battery positive (-) → Terminal 1      		 Turns counterclockwise
      Fig 1: Inspecting Luggage Door Drive Gear Assembly (Roof Lock Motor)
      G05294371Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the sliding roof drive gear sub-assembly.

  2. INSPECT REMOVABLE ROOF LOCK SUB-ASSEMBLY 
    1. Apply battery voltage to the drive gear terminals and check operation of the removable roof lock.

      OK 

      MEASUREMENT CONDITION CHART

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 1
      Battery positive (-) → Terminal 2      		 Hook moves to LOCK position
      Battery positive (+) → Terminal 2
      Battery positive (-) → Terminal 1      		 Hook moves to UNLOCK position
      Fig 2: Inspecting Removable Roof Lock Sub-Assembly
      G05294372Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the removable roof lock sub-assembly.

  3. INSPECT SLIDING ROOF DRIVE GEAR ASSEMBLY RH (ROOF DRIVE MOTOR RH) 
    1. Apply battery voltage to the drive gear terminals and check operation of the sliding roof drive gear RH.

      OK 

      MEASUREMENT CONDITION CHART

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 1
      Battery positive (-) → Terminal 3      		 Turns clockwise
      Battery positive (+) → Terminal 3
      Battery positive (-) → Terminal 1      		 Turns counterclockwise
      Fig 3: Inspecting Sliding Roof Drive Gear Assembly RH (Roof Drive Motor RH)
      G05294373Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the sliding roof drive gear assembly RH.

    2. Apply battery voltage to the drive gear terminals and check operation of the sliding roof drive gear RH.
      1. Connect the electrical tester's positive (+) lead to terminal 5 and negative (-) lead to terminal 4.
      2. Connect 5 1.5 V dry cell batteries in series.
      3. Connect terminal 6 to the dry cell batteries' positive (+) terminal, and terminal 4 to the dry cell batteries' negative (-) terminal.
      4. Connect the battery's positive (+) lead to terminal 1, and negative (-) lead to terminal 3.
      5. Check the output voltage of terminals 4 and 5.

        OK: 

        Pulse is generated while motor running 

      6. Reverse the polarity of terminals 1 and 3.
      7. Check the output voltage of terminals 4 and 5.

        OK: 

        Pulse is generated while motor running 

        If the result is not as specified, replace the sliding roof drive gear assembly RH.

        Fig 4: Identifying Output Voltage Pulse
        G05294374Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT SLIDING ROOF DRIVE GEAR ASSEMBLY LH (ROOF DRIVE MOTOR LH) 
    1. Apply battery voltage to the drive gear terminals and check operation of the sliding roof drive gear LH.

      OK 

      MEASUREMENT CONDITION CHART

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 1
      Battery positive (-) → Terminal 3      		 Turns clockwise
      Battery positive (+) → Terminal 3
      Batter positive (-) → Terminal 1      		 Turns counterclockwise
      Fig 5: Inspecting Sliding Roof Drive Gear Assembly LH (Roof Drive Motor LH)
      G05294375Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the sliding roof drive gear assembly LH.

    2. Apply battery voltage to the drive gear terminals and check operation of the sliding roof drive gear LH.
      1. Connect the electrical tester's positive (+) lead to terminal 5 and negative (-) lead to terminal 4.
      2. Connect 5 1.5 V dry cell batteries in series.
      3. Connect terminal 6 to the dry cell batteries' positive (+) terminal, and terminal 4 to the dry cell batteries' negative (-) terminal.
      4. Connect the battery's positive (+) lead to terminal 1, and negative (-) lead to terminal 3.
      5. Check the output voltage of terminals 4 and 5.

        OK: 

        Pulse is generated while motor running 

      6. Reverse the polarity of terminals 1 and 3.
      7. Check the output voltage of terminals 4 and 5.

        OK: 

        Pulse is generated while motor running 

        If the result is not as specified, replace the sliding roof drive gear assembly LH.

        Fig 6: Identifying Output Voltage Pulse
        G05294376Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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