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Home › Toyota › 2005 › Avalon XLS › Repair and Diagnosis › Body & Frame › Door Locks › Power Door Lock Control System - Diagnostics › Door Lock Control Switch Circuit (Master Switch) › Inspection Procedure

Inspection Procedure

  1. READ VALUE OF DATA LIST (DOOR LOCK SWITCH) 
    1. Check the DATA LIST for proper functioning of the door unlock detection switch.

      Body ECU: 

      Fig 1: Data List (Door Lock Switch)
      G02975770Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: "ON" (door is locked/unlocked) appears on the screen. 

    1. NG: Go to step 2 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 
  2. INSPECT MULTIPLEX NETWORK MASTER SWITCH ASSY (DOOR LOCK CONTROL SWITCH) 
    1. Disconnect the multiplex network master switch assy.
    2. Measure the resistance of the switch when the switch is operated.

      Standard: 

      MULTIPLEX NETWORK MASTER SWITCH ASSY (DOOR LOCK CONTROL SWITCH)

      Tester Connection Door Lock Condition Specified Condition
      1 - 8 ON (Door lock set to UNLOCK) Below 1 Ω
      1 - 5 OFF (Door Lock set to LOCK) Below 1 Ω
      Fig 2: Inspecting Multiplex Network Master Switch Assy (Door Lock Control Switch)
      G02975771Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSY 
    2. OK: Go to next step 
  3. CHECK WIRE HARNESS (MULTIPLEX NETWORK MASTER SWITCH ASSY - INSTRMENT PANEL J/B) 
    1. Disconnect the I6 connector.
    2. Remove the body ECU from instrument panel J/B.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      MULTIPLEX NETWORK MASTER SWITCH ASSY - INSTRMENT PANEL J/B

      Tester Connection Condition Specified Condition
      9 - I6-5 (L1) Always Below 1 Ω
      12 - I6-8 (UL1) Always Below 1 Ω
      I6-1 - Body ground Always Below 1 Ω
      Fig 3: Checking Wire Harness (Multiplex Network Master Switch Assy - Instrument Panel J/B)
      G02975772Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 
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