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Main Switch Power Source Circuit [09/2014 - ]: Procedure

  1. CHECK HARNESS AND CONNECTOR (UPPER CONSOLE PANEL SUB-ASSEMBLY POWER SOURCE) 
    1. Disconnect the I179 upper console panel sub-assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I179-4 (GND1) - Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      I179-2 (ACC) - I179-4 (GND1) Engine switch on (ACC) 11 to 14 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  2. INSPECT UPPER CONSOLE PANEL SUB-ASSEMBLY 
    1. Disconnect the I179 and A upper console panel sub-assembly connectors.
      GTY480827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I179-2 (ACC) - A-11 (ACC) Always Below 1 Ω
      I179-4 (GND1) - A-12 (GND1) Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Upper Console Panel Sub-assembly)

    NG → See step   4 

    OK → See step   3 

  3. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [09/2014 - ]  
  4. REPLACE UPPER CONSOLE PANEL SUB-ASSEMBLY. Refer to  REMOVAL [09/2014 - ] 
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