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Home >> Toyota >> 2021 >> Venza LE >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System (For 12.3 Inch Display) - Diagnostic Codes & Symptom Tests >> METER / GAUGE SYSTEM (for 12.3 Inch Display) >> Power Source Circuit [10/2022 - ] >> Procedure

Power Source Circuit [10/2022 - ]: Procedure

  1. CHECK HARNESS AND CONNECTOR (IG POWER SOURCE CIRCUIT) 
    1. Disconnect the E139 combination meter assembly connector.
    2. Measure the voltage according to the value(s) in the table below.
      GTY1118468Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      E139-6 (IG+) - Body ground Ignition switch off Below 1 V
      E139-6 (IG+) - Body ground Ignition switch ON 10.5 to 16 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (+B POWER SOURCE CIRCUIT) 
    1. Disconnect the E139 combination meter assembly connector.
    2. Measure the voltage according to the value(s) in the table below.
      GTY1113133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      E139-5 (B) - Body ground Always 11 to 14 V 

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E139-1 (EP) - Body ground Always Below 1 Ω
      E139-2 (ES) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR