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Home >> Toyota >> 2007 >> Corolla CE, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter >> Meter / Gauge System >> Front Passenger Side Seat Belt Warning Light Malfunction >> Inspection Procedure

Inspection Procedure

  1. INSPECT COMBINATION METER ASSEMBLY 
    1. Disconnect the C9 connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified condition
      C9-6 - Body ground Ignition switch ACC or ON 10 to 14 V

    NG: GO TO step 2 

    Fig 1: Inspecting Combination Meter Assembly
    G05196107Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO Next Step 

  2. INSPECT PASSENGER SEAT BELT WARNING LIGHT 
    1. Remove the passenger seat belt warning light with connectors still connected.
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified condition
      F7-1 - F7-2 Sit on the passenger seat and turn the ignition switch ON 8 to 12 V

    NG: REPLACE PASSENGER SEAT BELT WARNING LIGHT 

    Fig 2: Inspecting Passenger Seat Belt Warning Light
    G05196108Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO Next Step 

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER - PASSENGER SEAT BELT WARNING LIGHT) 
    1. Disconnect the F7 and C9 connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified condition
      F7-1 - C9-6 Always Below 1 Ω
      C9-6 - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 3: Checking Harness And Connector (Combination Meter - Passenger Seat Belt Warning Light)
    G05196109Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (GAUGE FUSE CIRCUIT) 

  4. INSPECT COMBINATION METER ASSEMBLY 
    1. Remove the combination meter assembly with connectors still connected.
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified condition
      C9-11 - Body ground Indicator light ON (P-BELT) → OFF Below 1 V → 0 to 14 V

    NG: REPLACE COMBINATION METER ASSEMBLY 

    Fig 4: Inspecting Combination Meter Assembly
    G05196110Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO Next Step 

  5. INSPECT FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side) 
    1. Remove the front seat inner belt assembly (for front passenger side) with connectors still connected.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified condition
      B7-1 - B7-2 Belt is fastened (Passenger side) Below 1 Ω
      B7-1 - B7-2 Belt is not fastened (Passenger side) 10 kΩ or higher
    Fig 5: Inspecting Front Seat Inner Belt Assembly (For Front Passenger Side)
    G05196111Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side) 

    OK: GO TO Next Step 

  6. INSPECT OCCUPANT DETECTION ECU 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified condition
      O3-5 - Body ground Always Below 1 Ω
      Fig 6: Inspecting Occupant Detection ECU
      G05196112Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified condition
      O3-9 - Body ground Seat belt is fastened 8 to 11 V
      O3-9 - Body ground Seat belt is unfastened 3 to 4.5 V

    NG: REPLACE OCCUPANT DETECTION ECU 

    Fig 7: Inspecting Occupant Detection ECU
    G05196113Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO Next Step 

  7. CHECK HARNESS AND CONNECTOR (OCCUPANT DETECTION ECU - FRONT SEAT INNER BELT ASSEMBLY) 
    1. Disconnect the 03 and B7 connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified condition
      B7-2 - O3-9 Always Below 1 Ω
      B7-1 - O3-5 Always Below 1 Ω
      B7-2 - Body ground Always 10 kΩ or higher
      B7-1 - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 8: Checking Harness And Connector (Occupant Detection ECU - Front Seat Inner Belt Assembly)
    G05196114Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO Next Step 

  8. CHECK HARNESS AND CONNECTOR (CENTER AIRBAG SENSOR ASSEMBLY - OCCUPANT DETECTION ECU) 
    1. Disconnect the O3 and A14 connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester connection Condition Specified condition
      A14-12 - O3-8 Always Below 1 Ω
      A14-13 - O3-4 Always Below 1 Ω
      A14-12 - Body ground Always 10 kΩ or higher
      A14-13 - Body ground Always 10 kΩ or higher

    MG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 9: Checking Harness And Connector (Center Airbag Sensor Assembly - Occupant Detection ECU)
    G05196115Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (CENTER AIRBAG SENSOR ASSEMBLY - COMBINATION METER CIRCUIT) 

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