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Inspection Procedure

  1. INSPECT MULTI-DISPLAY (+B1, ACC, IG, TELSW-, GND) 
    Fig 1: Multi-Display (+B1, ACC, IG, Telsw-, Gnd) Terminal Connector
    G03000510Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the multi-display connector M3, M4.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION CHART

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

    Standard: 

    TESTER CONNECTION SPECIFIED CONDITION CHART

    Tester Connection Condition Specified Condition
    +B1 - GND Always 10 to 14 V
    ACC - GND Ignition SW ACC 10 to 14 V
    IG - GND Ignition SW ON 10 to 14 V

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE   or  DIAGNOSTIC TROUBLE CODE CHART