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Home >> Toyota >> 2012 >> Yaris Base, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System (Sedan) (Diagnostic Codes & Symptom Tests) >> METER / GAUGE SYSTEM (for Sedan) >> Symptom Tests >> Entire Combination Meter does not Operate >> Procedure

Entire Combination Meter does not Operate: Procedure

  1. CHECK FUSE (ECU-B, MET) 
    1. Remove the ECU-B fuse from the engine room relay block.
      Fig 1: Identifying ECU-B Fuse And ECU Connector
      GTY339432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the MET fuse from the main body ECU.
    3. Measure the resistance.

      Standard Resistance

      Below 1Ω

    4. Reinstall the fuse.

    NG → CHECK SHORT CIRCUIT IN COMPONENTS AND WIRES CONNECTED TO FUSE 

    OK: Go to next step 

  2. INSPECT COMBINATION METER ASSEMBLY 
    1. Disconnect the D1 combination meter connector.
      Fig 2: Identifying D1 Combination Meter Connector
      GTY245997Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance.

      Standard resistance

      Tester Connection Condition Specified Condition
      D1-24 (ET) - Body ground Always Below 1 Ω
    3. Measure the voltage.

      Standard voltage

      Tester Connection Condition Specified Condition
      D1-1 (IG2) - Body ground Ignition switch ON 11 to 14V
      D1-2 (ECU-B) - Body ground Always 11 to 14V
    4. Reconnect the combination meter connector.

    NG → REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK → See step   3 

  3. REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL