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Inspection Procedure

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  1. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSY 
    1. Remove the multiplex network master switch with connector still connected.
    2. Measure the voltage of the wire harness side connector.

      Standard: 

      SPECIFIED CONDITION

      Switch Condition Tester Connection Specified Condition
      I6-15 - Body ground Window lock switch is OFF --> ON 0 V --> 2 V or less
      Fig 1: Identifying Multiplex Network Master Switch
      G02975693Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSY 
    2. OK: Go to next step. 
  2. CHECK WIRE HARNESS (MULTIPLEX NETWORK MASTER SWITCH ASSY - MULTIPLEX NETWORK SWITCH ASSY) 
    1. Disconnect the I6 and H6 connectors.
    2. Measure the resistance of the wire harness side connector.

      Standard: 

      SPECIFIED CONDITION

      Switch Condition Tester Connection Specified Condition
      I6-15 - H6-11 Always Below 1 Ω
      I6-15 - Body ground Always 10 kΩ or higher
      Fig 2: Checking Wire Harness (Multiplex Network Master Switch Assy - Multiplex Network Switch Assy
      G02975694Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 
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