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Home >> Lexus >> 2010 >> LS 600hL >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Power Shoulder Belt Anchorage System (Diagnostics) >> Power Shoulder Belt Anchorage System >> Driver Side Seat Belt Anchor does not Operate Manually >> Procedure

Driver Side Seat Belt Anchor does not Operate Manually: Procedure

  1. READ VALUE USING TECHSTREAM (SHOULDER BELT ANCHORAGE SWITCH LH) 
    1. Check the Data List for proper functioning of the shoulder belt anchorage switch. Refer to DATA LIST / ACTIVE TEST .
      DRIVER DOOR:

      Tester Display Measurement Item / Range Normal Condition Diagnostic Note
      Belt Anchor Switch Up Shoulder belt anchorage switch LH / OFF or ON ON: Up switch is pressed
      OFF: Up switch is not pressed
      -
      Belt Anchor Switch Down Shoulder belt anchorage switch LH / OFF or ON ON: Down switch is pressed
      OFF: Down switch is not pressed
      -

      OK

      Data List display changes correctly according to switch operation.

    NG → See step   5 

    OK: Go to next step 

  2. INSPECT SHOULDER BELT ANCHOR MOTOR LH 
    1. Remove the shoulder belt anchor motor LH. Refer to REMOVAL .
      Fig 1: Identifying Shoulder Belt Anchor Motor Terminal Connector
      GTY284048Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Apply battery voltage to the shoulder belt anchor motor LH.
    3. Check the motor operation.

      OK

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 3 (DOWN)
      Battery negative (-) → Terminal 5 (UP)
      Motor moves downward.
      Battery positive (+) → Terminal 5 (UP)
      Battery negative (-) → Terminal 3 (DOWN)
      Motor moves upward.

    NG → See step   4 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (SHOULDER BELT ANCHOR MOTOR LH - REAR JUNCTION BLOCK ECU) 
    1. Disconnect the S61 ECU connector.
      Fig 2: Identifying S61 And S7 Terminal Connectors
      GTY264591Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the S7 anchor connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      S61-8 (DBM-) - S7-3 (DOWN) Always Below 1 Ω
      S61-10 (DBM+) - S7-5 (UP)
      S61-8 (DBM-) - Body ground Always 10 kΩ or higher
      S61-10 (DBM+) - Body ground

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → REPLACE LUGGAGE ROOM JUNCTION BLOCK ASSEMBLY (REAR JUNCTION BLOCK ECU) 

  4. REPLACE SHOULDER BELT ANCHOR MOTOR LH. Refer to  REMOVAL 
  5. INSPECT SHOULDER BELT ANCHORAGE SWITCH LH 
    1. Remove the shoulder belt anchorage switch LH. Refer to REMOVAL .
      Fig 3: Identifying Shoulder Belt Anchorage Switch Terminal Connector
      GTY272457Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      2 (DW) - 3 (UL) Not operated 10 kΩ or higher
      4 (UP) - 3 (UL) Not operated 10 kΩ or higher
      2 (DW) - 3 (UL) Operated in up direction 10 kΩ or higher
      4 (UP) - 3 (UL) Operated in up direction Below 1 Ω
      2 (DW) - 3 (UL) Operated in down direction Below 1 Ω
      4 (UP) - 3 (UL) Operated in down direction 10 kΩ or higher

    NG → See step   8 

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (SHOULDER BELT ANCHORAGE SWITCH LH - FRONT DOOR ECU LH) 
    1. Disconnect the P6 switch connector.
      Fig 4: Identifying P6 And P10 Terminal Connectors
      GTY254204Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the P10 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      P6-2 (DW) - P10-17 (DSDN) Always Below 1 Ω
      P6-3 (UL) - P10-28 (DSE)
      P6-4 (UP) - P10-18 (DSUP)
      P6-2 (DW) - Body ground Always 10 kΩ or higher
      P6-3 (UL) - Body ground
      P6-4 (UP) - Body ground

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   7 

  7. REPLACE FRONT DOOR ECU LH. Refer to  REMOVAL - Step 18 
  8. REPLACE SHOULDER BELT ANCHORAGE SWITCH LH. Refer to  REMOVAL