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Home >> Lexus >> 2011 >> LX 570 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System (Diagnostic Codes & Symptom Tests) >> Meter / Gauge System >> Symptom Tests >> Entire Combination Meter does not Operate >> Procedure

Entire Combination Meter does not Operate: Procedure

  1. INSPECT FUSE (MET, ECU-B1) 
    1. Remove the MET and ECU-B1 fuses from the engine room relay block.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      MET fuse Always Below 1 Ω
      ECU-B1 fuse

    NG → REPLACE FUSE 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BATTERY AND BODY GROUND) 
    Fig 1: Identifying E77 Meter Connector Terminals
    GTY127114Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E77 meter connector.
    2. Measure the resistance and voltage according to the value(s) in the tables below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E77-26 (ET) - Body ground Always Below 1 Ω

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      E77-21 (B) - Body ground Always 11 to 14 V
      E77-30 (IG+) - Body ground Engine switch on (IG)

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   3 

  3. REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL 
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