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On-Vehicle Inspection

  1. INSPECT INTEGRATION RELAY (IG2) 
    1. Check the IG2 fuse.
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        IG2 fuse Always Below 1 Ω

        If the result is not as specified, replace the IG2 fuse.

    2. Check the IG2 relay.
      1. Measure the resistance according to the value(s) in the table below.
        Fig 1: Inspecting Integration Relay (IG2)
        GTY313831Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Resistance

        Tester Connection Condition Specified Condition
        1C-1 - 1A-4 Battery voltage not applied to terminals 1A-2 and 1A-3 10 kΩ or higher
        Battery voltage applied to terminals 1A-2 and 1A-3 Below 1 Ω
        TEXT IN ILLUSTRATION

        *a Component without harness connected
        (Integration Relay)

        If the result is not as specified, replace the integration relay.

  2. INSPECT INTEGRATION RELAY (EFI) 
    1. Check the EFI No. 1 fuse.
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        EFI No. 1 fuse Always Below 1 Ω

        If the result is not as specified, replace the EFI No. 1 fuse.

    2. Check the EFI No. 1 relay.
      1. Measure the resistance according to the value(s) in the table below.
        Fig 2: Inspecting Integration Relay (IG2)
        GTY313831Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Resistance

        Tester Connection Condition Specified Condition
        1C-1 - 1B-4 Battery voltage not applied to terminals 1B-2 and 1B-3 10 kΩ or higher
        Battery voltage applied to terminals 1B-2 and 1B-3 Below 1 Ω
        TEXT IN ILLUSTRATION

        *a Component without harness connected
        (Integration Relay)

        If the result is not as specified, replace the integration relay.

  3. INSPECT INTEGRATION RELAY (EFI NO. 2) 
    1. Check the EFI No. 2 fuse.
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        EFI No. 2 fuse Always Below 1 Ω

        If the result is not as specified, replace the EFI No. 2 fuse.

    2. Check the EFI No. 2 relay.
      1. Measure the resistance according to the value(s) in the table below.
        Fig 3: Inspecting Integration Relay (IG2)
        GTY313831Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Resistance

        Tester Connection Condition Specified Condition
        1C-1 - 1B-8 Battery voltage not applied to terminals 1B-6 and 1B-7 10 kΩ or higher
        Battery voltage applied to terminals 1B-6 and 1B-7 Below 1 Ω
        TEXT IN ILLUSTRATION

        *a Component without harness connected
        (Integration Relay)

        If the result is not as specified, replace the integration relay.

  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK (C/OPN) 
    NOTE:

    The circuit opening relay is built into the instrument panel junction block.

    1. Measure the resistance of the circuit opening relay circuit.
      Fig 4: Inspecting Instrument Panel Junction Block (C/Opn)
      GTY313507Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Instrument Panel Junction Block)      		 - -
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        2B-2 - 2A-13 Battery voltage is not applied to terminals 2B-12 and 2B-17 10 kΩ or higher
        Battery voltage is applied to terminals 2B-12 and 2B-17 Below 1 Ω

        If the result is not as specified, replace the instrument panel junction block.

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