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.

      OK 

      MEASUREMENT SPECIFIED CONDITION CHART
      
      

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

      Fig 1: Inspecting Height Adjustable Anchor Motor LH

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      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.
      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.
         Fig 2: Inspecting Height Adjustable Anchor Motor LH

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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: Checking Shoulder Belt Anchor Adjuster Slides To Downward Position

         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 

   TESTER CONNECTION CHART
   
   

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

   Fig 4: Identifying Signal Waveform

   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.
   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

      Fig 5: Inspecting Height Adjustable Anchor Motor RH

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   3. Check the PTC operation inside the regulator motor.
   Fig 6: Checking Regulator Motor
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   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.
   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.

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

      Fig 7: Checking Shoulder Belt Anchor Adjuster Slides To Downward Position

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002