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Home >> Scion >> 2005 >> xB Automatic >> Repair and Diagnosis >> Electrical >> Gauges >> Combination Meter >> Warning Buzzer Does Not Sound >> Inspection Procedure

Inspection Procedure

  1. 1 CHECK BUZZER 
    1. Operate the buzzer and check that the buzzer for seat belt warning, key reminder warning and light reminder warning normally sound.
    CHECK BUZZER

    A All warning buzzer does not sound.
    B Seat belt warning does not sound.
    C Key reminder warning does not sound.
    D Light reminder warning does not sound.
    1. B Go to step   6 
    2. C Go to step   8 
    3. D Go to step   12 
    4. A: GO TO NEXT STEP 
  2. 2 INSPECT FUSE 
    1. Inspect the AM1 fuse and GAUGE 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 
  3. 3 INSPECT COMBINATION METER ASSY 
    Fig 1: Disconnecting Combination Meter Connector
    G03096485Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the combination meter connector.
    2. Measure the voltage according to the value(s) in the table below.

    Standard: 

    COMBINATION METER CONNECTOR TERMINALS VOLTAGE

    Tester connection Condition Specified condition
    C6-23 - Body ground Ignition switch OFF Below 1 V
    C6-23 - Body ground Ignition switch ON 10 to 14 V
    1. NG Go to step 4 
    2. OK: REPLACE COMBINATION METER ASSY (See  COMBINATION METER ASSY  ) 
  4. 4 INSPECT IGNITION SWITCH 
    Fig 2: Identifying Ignition Switch Connector
    G03096486Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the ignition switch connector.
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    IGNITION SWITCH CONNECTOR TERMINALS RESISTANCE

    Tester connection Condition Specified condition
    I10-1 - I10-2 Ignition switch OFF 10 kΩ or higher
    I10-1 - I10-2 Ignition switch ON Below 1 Ω
    1. NG REPLACE IGNITION SWITCH 
    2. OK: GO TO NEXT STEP 
  5. 5 CHECK HARNESS AND CONNECTOR 
    Fig 3: Disconnecting Ignition Switch Connector
    G03096487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the ignition switch connector.
    2. Measure the voltage according to the value(s) in the table below.

    Standard: 

    IGNITION SWITCH CONNECTOR TERMINALS VOLTAGE

    Tester connection Condition Specified condition
    I10-1 - Body ground Always 10 to 14 V
    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  ) 
  6. 6 INSPECT FRONT SEAT INNER BELT ASSY LH 
    Fig 4: Identifying Front Seat Inner Belt Assy LH Connector
    G03096488Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the front seat inner belt assy LH connector.
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    SEAT INNER BELT ASSY LH CONNECTOR TERMINALS RESISTANCE

    Tester connection Condition Specified condition
    3 - Body ground Driver side seat belt is fastened 1,200 to 1,460 Ω
    3 - Body ground Driver side seat belt is unfastened 300 to 360 Ω
    1. NG REPLACE FRONT SEAT INNER BELT ASSY LH 
    2. OK: GO TO NEXT STEP 
  7. 7 CHECK HARNESS AND CONNECTOR(DRIVER SIDE SEAT BELT SIGNAL CIRCUIT) 
    Fig 5: Disconnecting Combination Meter Connector And Front Seat Inner Belt Assy Connector
    G03096489Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the combination meter connector and front seat inner belt assy connector.
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    COMBINATION METER CONNECTOR AND FRONT SEAT INNER BELT ASSY CONNECTOR TERMINALS RESISTANCE

    Tester connection Condition Specified condition
    C6-32 - B7-3 Always Below 1 Ω
    1. NG REPAIR OR REPLACE HARNESS OR CONNECTOR (SEE  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
    2. OK: REPLACE COMBINATION METER ASSY (See  COMBINATION METER ASSY  ) 
  8. 8 INSPECT COMBINATION METER ASSY 
    Fig 6: Disconnecting Combination Meter Connector
    G03096490Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the combination meter connector.
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    COMBINATION METER CONNECTOR TERMINALS RESISTANCE

    Tester connection Condition Specified condition
    C6-25 - Body ground Ignition key is not inserted 10 kΩ or higher
    C6-25 - Body ground Ignition key is inserted Below 1 Ω
    1. NG Go to step   10 
    2. OK: GO TO NEXT STEP 
  9. 9 INSPECT COMBINATION METER ASSY 
    Fig 7: Disconnecting Combination Meter Connector
    G03096491Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the combination meter connector.
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    COMBINATION METER CONNECTOR TERMINALS RESISTANCE

    Tester connection Condition Specified condition
    C6-24 - Body ground Driver side door is closed 10 kΩ or higher
    C6-24 - Body ground Driver side door is open Below 1 Ω
    1. NG Go to step   11 
    2. OK: REPLACE COMBINATION METER ASSY (See  COMBINATION METER ASSY  ) 
  10. 10 INSPECT UN-LOCK WARNING SWITCH ASSY 
    1. Measure the resistance according to the value(s) in the table below.

    Standard: 

    WARNING SWITCH CONNECTOR TERMINALS RESISTANCE

    Tester connection Condition Specified condition
    1 - 2 Ignition key is not inserted 10 kΩ or higher
    1 - 2 Ignition key is inserted Below 1 Ω
    1. NG REPLACE UN-LOCK WARNING SWITCH ASSY 
    2. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (UN-LOCK WARNING SWITCH CIRCUIT) (SEE  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
  11. 11 INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY 
    1. Measure the resistance according to the value(s) in the table below.

    Standard: 

    FRONT DOOR COURTESY LAMP SWITCH CONNECTOR TERMINALS RESISTANCE

    Tester connection Condition Specified condition
    1 - Body ground Driver side courtesy switch shaft is pushed in 10 kΩ or higher
    1 - Body ground Driver side courtesy switch shaft is free Below 1 Ω
    1. NG REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSY 
    2. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (DOOR COURTESY LAMP SWITCH ASSY) (SEE  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
  12. 12 INSPECT FUSE 
    1. Inspect the ALT fuse in the fusible link block assy.

      Standard: 

      Below 1 Ω 

    2. Inspect the TAIL 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 
  13. 13 INSPECT COMBINATION METER ASSY 
    Fig 8: Identifying Combination Meter Connector
    G03096492Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage according to the value(s) in the table below.

    Standard: 

    COMBINATION METER CONNECTOR TERMINALS VOLTAGE

    Tester connection Condition Specified condition
    C6-26 - Body ground Light control switch OFF Below 1 V
    C6-26 - Body ground Light control switch TAIL or HEAD 10 to 14 V
    1. NG Go to step   15 
    2. OK: GO TO NEXT STEP 
  14. 14 INSPECT COMBINATION METER ASSY 
    Fig 9: Disconnecting Combination Meter Connector
    G03096493Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the combination meter connector.
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    COMBINATION METER CONNECTOR TERMINALS RESISTANCE

    Tester connection Condition Specified condition
    C6-24 - Body ground Driver side door is closed 10 kΩ or higher
    C6-24 - Body ground Driver side door is open Below 1 Ω
    1. NG Go to step   16 
    2. OK: REPLACE COMBINATION METER ASSY (See  COMBINATION METER ASSY  ) 
  15. 15 INSPECT HEADLAMP DIMMER SWITCH ASSY 
    1. Inspect light control switch of combination switch (See INSPECTION ).
    1. NG REPLACE HEADLAMP DIMMER SWITCH ASSY (See  REPLACEMENT  ) 
    2. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (HEADLAMP DIMMER SWITCH CIRCUIT) (SEE  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
  16. 16 INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY 
    1. Measure the resistance according to the value(s) in the table below.

    Standard: 

    FRONT DOOR COURTESY LAMP SWITCH CONNECTOR TERMINALS RESISTANCE

    Tester connection Condition Specified condition
    1 - Body ground Driver side courtesy switch shaft is pushed in 10 kΩ or higher
    1 - Body ground Driver side courtesy switch shaft is free Below 1 Ω
    1. NG REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSY 
    2. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (DOOR COURTESY LAMP SWITCH CIRCUIT) (SEE  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
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