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Home › Lexus › 2009 › LS 460L AWD › Repair and Diagnosis › Restraints › Restraints Control Systems › Seat Belt › Power Shoulder Belt Anchorage System › Driver Side Seat Belt Anchor does not Operate Manually › Inspection Procedure

Inspection 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.

      Driver Door 

      DIAGNOSTIC NOTE

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

      OK: 

      Data List display changes correctly according to switch operation. 

      NG:  Go to step  4

      OK: Go to Next Step 

  2. CHECK SHOULDER BELT ANCHOR MOTOR LH 
    1. Disconnect the S7 anchor connector.
    2. Apply battery voltage to the shoulder belt anchor motor.
    3. Check the motor operation.

      OK 

      MEASUREMENT CONDITION CHART

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 3
      Battery negative (-) → Terminal 5      		 Motor moves downward
      Battery positive (+) → Terminal 5
      Battery negative (-) → Terminal 3      		 Motor moves upward
      Fig 1: Identifying S7 Anchor Connector Terminals
      G06188637Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG: REPLACE SHOULDER BELT ANCHOR MOTOR LH (See  REMOVAL   ) 

      OK: Go to Next Step 

  3. CHECK HARNESS AND CONNECTOR (SHOULDER BELT ANCHOR MOTOR - REAR JUNCTION BLOCK ECU) 
    1. Disconnect the S61 ECU connector.
    2. Disconnect the S7 anchor connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      S7-5 (UP) - S61-10 (DBM+) Always Below 1 Ω
      S7-3 (DOWN) - S61-8 (DBM-) Always Below 1 Ω
      Fig 2: Checking Harness And Connector (Shoulder Belt Anchor Motor - Rear Junction Block ECU)
      G06188638Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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

  4. INSPECT SHOULDER BELT ANCHORAGE SWITCH LH 
    1. Disconnect the P6 switch connector.
    2. Measure the resistance according to the value (s) in the table below.
      Fig 3: Identifying P6 Switch Connector Terminals
      G06188639Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Switch Condition Specified Condition
      P6-4 (UP) - P6-3 (UL) Not operated 10 kΩ or higher
      P6-2 (DW) - P6-3 (UL) Not operated 10 kΩ or higher
      P6-4 (UP) - P6-3 (UL) Operated in up direction Below 1 Ω
      P6-2 (DW) - P6-3 (UL) Operated in up direction 10 kΩ or higher
      P6-4 (UP) - P6-3 (UL) Operated in down direction 10 kΩ or higher
      P6-2 (DW) - P6-3 (UL) Operated in down direction Below 1 Ω

      NG: REPLACE SHOULDER BELT ANCHORAGE SWITCH LH (See  REMOVAL   ) 

      OK: Go to Next Step 

  5. CHECK HARNESS AND CONNECTOR (SHOULDER BELT ANCHORAGE SWITCH - FRONT DOOR ECU) 
    1. Disconnect the P10 ECU connector.
    2. Disconnect the P6 switch connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Switch Condition Specified Condition
      P6-4 (UP) - P10-18 (DSUP) Always Below 1 Ω
      P6-3 (UL) - P10-28 (DSE) Always Below 1 Ω
      P6-2 (DW) - P10-17 (DSDN) Always Below 1 Ω
      Fig 4: Checking Harness And Connector (Shoulder Belt Anchorage Switch - Front Door ECU)
      G06188640Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      OK: REPLACE FRONT DOOR ECU LH 

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