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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 >> Front Passenger Side Seat Belt Anchor does not Operate Manually >> Procedure

Front Passenger Side Seat Belt Anchor does not Operate Manually: Procedure

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

      Tester Display Measurement Item / Range Normal Condition Diagnostic Note
      Belt Anchor Switch Up Shoulder belt anchorage switch RH / OFF or ON ON: Up switch is pressed
      OFF: Up switch is not pressed
      -
      Belt Anchor Switch Down Shoulder belt anchorage switch RH / 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 RH 
    1. Remove the shoulder belt anchor motor RH. Refer to REMOVAL .
      Fig 1: Identifying Shoulder Belt Anchor Motor Terminal Connector
      GTY265025Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Apply battery voltage to the shoulder belt anchor motor RH.
    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 RH - REAR JUNCTION BLOCK ECU) 
    1. Disconnect the S62 ECU connector.
      Fig 2: Identifying S62 And R62 Terminal Connectors
      GTY274842Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the R62 anchor connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      S62-23 (PBM-) - R62-3 (DOWN) Always Below 1 Ω
      S62-22 (PBM+) - R62-5 (UP)
      S62-23 (PBM-) - Body ground Always 10 kΩ or higher
      S62-22 (PBM+) - 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 RH. Refer to  REMOVAL 
  5. INSPECT SHOULDER BELT ANCHORAGE SWITCH RH 
    1. Remove the shoulder belt anchorage switch RH. Refer to REMOVAL .
      Fig 3: Identifying Shoulder Belt Anchorage Switch Terminal Connector
      GTY272456Courtesy 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 (UP) - 3 (UL) Not operated 10 kΩ or higher
      4 (DW) - 3 (UL) Not operated 10 kΩ or higher
      2 (UP) - 3 (UL) Operated to UP direction Below 1 Ω
      4 (DW) - 3 (UL) Operated to UP direction 10 kΩ or higher
      2 (UP) - 3 (UL) Operated to DOWN direction 10 kΩ or higher
      4 (DW) - 3 (UL) Operated to DOWN direction Below 1 Ω

    NG → See step   8 

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (SHOULDER BELT ANCHORAGE SWITCH RH - FRONT DOOR ECU RH) 
    1. Disconnect the P1 switch connector.
      Fig 4: Identifying P1 And P4 Terminal Connectors
      GTY254205Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the P4 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      P1-2 (UP) - P4-18 (PSUP) Always Below 1 Ω
      P1-3 (UL) - P4-28 (PSE)
      P1-4 (DW) - P4-17 (PSDN)
      P1-2 (UP) - Body ground Always 10 kΩ or higher
      P1-3 (UL) - Body ground
      P1-4 (DW) - Body ground

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   7 

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