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Home >> Scion >> 2004 >> xB Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Combination Meter - Diagnosis >> Entire Combination Meter Does Not Operate >> Inspection Procedure

Inspection Procedure

  1. INSPECT FUSE 
    1. Inspect the ALT fuse and MAIN fuse in the FL block.

      Standard: 

      Below 1 Ω 

    2. Inspect the DOME fuse and AM2 fuse in the engine room R/B.

      Standard: 

      Below 1 Ω 

    3. Inspect the GAUGE fuse and AM1 fuse in the instrument panel junction block assy.

      Standard: 

      Below 1 Ω 

    1. NG: INSPECT FOR SHORT CIRCUIT IN HARNESS AND ALL COMPONENTS CONNECTED TO FUSE 
    2. OK: Go to next step. 
  2. INSPECT COMBINATION METER ASSY(GROUND CIRCUIT) 
    1. Disconnect the combination meter connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester connection Condition Specified condition
      C6-21 - Body ground Always Below 1 Ω
      Fig 1: Inspecting Combination Meter Assy (Ground Circuit)
      G03367981Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
    2. OK: Go to next step. 
  3. INSPECT COMBINATION METER ASSY 
    1. Disconnect the combination meter connector.
    2. Measure the voltage according to the value(s) in the table below.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester connection Condition Specified condition
      C6-1 - C6-21 Always 10 to 14 V
      Fig 2: Inspecting Combination Meter Assy (Always)
      G03367982Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - COMBINATION METER ASSY) (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
    2. OK: Go to next step. 
  4. INSPECT COMBINATION METER ASSY 
    1. Disconnect the combination meter connector.
    2. Measure the voltage according to the value(s) in the table below.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester connection Condition Specified condition
      C6-21 - C6-23 Ignition switch OFF --> ON Below 1 V --> 10 to 14 V
      C6-21 - C6-40 Ignition switch OFF --> ON Below 1 V --> 10 to 14 V
      Fig 3: Inspect Combination Meter Assy (Ignition Switch Off)
      G03367983Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: Go to step 5 
    2. OK: REPLACE COMBINATION METER ASSY (See  COMBINATION METER ASSY  ) 
  5. INSPECT IGNITION SWITCH 
    1. Disconnect the ignition switch connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester connection Condition Specified condition
      I10-1 - I10-2 Ignition switch OFF --> ON 10 kΩ or higher Ω Below 1 Ω
      I10-5 - I10-6 Ignition switch OFF --> ON 10 kΩ or higher Ω Below 1 Ω
      Fig 4: Inspecting Ignition Switch
      G03367984Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE IGNITION SWITCH 
    2. OK: Go to next step. 
  6. CHECK HARNESS AND CONNECTOR 
    1. Disconnect the ignition switch connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester connection Condition Specified condition
      I10-1 - Body ground Always 10 to 14 V
      I10-5 - Body ground Always 10 to 14 V
      Fig 5: Checking Harness And Connector
      G03367985Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION SWITCH - BATTERY) (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
    2. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER ASSY - IGNITION SWITCH) (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
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