Shoulder Belt Anchorage: Inspection

HINT:

When removing the anchor motor from the height adjustable anchor, fix the height adjustable anchor's slider so that it does not move out of position. Fix the slider until the motor is reinstalled.

1. INSPECT HEIGHT ADJUSTABLE ANCHOR MOTOR LH 
   1. Disconnect the belt anchor adjuster.
   2. Apply battery voltage and check operation of the belt anchor adjuster.
      Fig 1: Inspecting Height Adjustable Anchor Motor LH (1 Of 3)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK 

      HEIGHT ADJUSTABLE ANCHOR MOTOR LH
      
      

      Measurement Condition	Specified Condition
      Battery positive (+) → Terminal 5 Battery negative (-) → Terminal 3	Slider moves upward
      Battery positive (+) → Terminal 3D Battery negative (-) → Terminal 5	Slider moves downward

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

   3. Check the PTC operation inside the regulator motor.
      NOTE: Perform this procedure with the shoulder belt anchor adjuster installed in the vehicle.
      1. Disconnect the driver side shoulder belt anchor adjuster.
      2. Connect the ammeter's positive (+) lead to terminal 5 of the wire harness side connector and the negative (-) lead to the battery's negative terminal.
      3. Connect the battery's positive (+) lead to terminal 5 and negative (-) lead to terminal 3, and slide the anchor to the upward position.
         Fig 2: Inspecting Height Adjustable Anchor Motor LH (2 Of 3)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Continue to apply voltage, and check that the current changes to less than 1 A within 6 to 46 seconds.
      5. Disconnect the leads from the terminals.
      6. Approximately 60 seconds later, connect the battery's positive (+) lead to terminal 3 and the negative (-) lead to terminal 5, and check that the shoulder belt anchor adjuster slides to the downward position.

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

         Fig 3: Inspecting Height Adjustable Anchor Motor LH (3 Of 3)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   4. Check the pulse of the pulse sensor.
      1. Using a oscilloscope check the pulse generated, when the motor is moving.

         Standard 

         WAVEFORM REFERENCE CHART
         
         

         Tester Connection	4-6
         Tool Setting	2 V/DIV., 50 ms/DIV.
         Motor Condition	Anchor motor moving

         Fig 4: Pulse Sensor Oscilloscope Waveform Graph

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

         If the result is not as specified, replace the motor assembly.

2. INSPECT HEIGHT ADJUSTABLE ANCHOR MOTOR RH 
   1. Disconnect the belt anchor adjuster.
      Fig 5: Inspecting Height Adjustable Anchor Motor RH (1 Of 3)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Apply battery voltage and check operation of the belt anchor adjuster.

      OK 

      MEASUREMENT SPECIFIED CONDITION CHART
      
      

      Measurement Condition	Specified Condition
      Battery positive (+) → Terminal 4 Battery negative (-) → Terminal 3	Slider moves upward
      Battery positive (+) → Terminal 3 Battery negative (-) → Terminal 4	Slider moves downward

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

   3. Check the PTC operation inside the regulator motor.
      NOTE: Perform this procedure with the shoulder belt anchor adjuster installed in the vehicle.
      1. Disconnect the passenger side shoulder belt anchor adjuster.
      2. Connect the ammeter's positive (+) lead to terminal 4 of the wire harness side connector and the negative (-) lead to the battery's negative terminal.
      3. Connect the battery's positive (+) lead to terminal 4 and negative (-) lead to terminal 3, and slide the anchor to the upward position.
         Fig 6: Inspecting Height Adjustable Anchor Motor RH (2 Of 3)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Continue to apply voltage, and check that the current changes to less than 1 A within 6 to 46 seconds.
      5. Disconnect the leads from the terminals.
      6. Approximately 60 seconds later, connect the battery's positive (+) lead to terminal 3 and the negative (-) lead to terminal 4, and check that the shoulder belt anchor adjuster slides to the downward position.
         Fig 7: Inspecting Height Adjustable Anchor Motor RH (3 Of 3)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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