RELAY ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT JUNCTION BLOCK

    A01HJTMC02
    *1 Main Body ECU - -
    *a

    Component without harness connected

    (Instrument Panel Junction Block Assembly)

    		 *b

    Component without main body ECU connected

    (Instrument Panel Junction Block Assembly)

    Note


    • The No. 1 IG1 relay, No. 2 IG1 relay and No. 3 IG1 relay are built into the junction block.

    • Before performing a check of each relay in the junction block, check the ECU-IG NO. 2 fuse, ECU-IG NO. 4 fuse and ECU-IG NO. 5 fuse.


    1. Inspect the IG1 No. 1 relay.


      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        4F-1 - 4C-21 Battery voltage not applied to terminals 4B-46 and 4D-28 10 kΩ or higher
        Battery voltage applied to terminals 4B-46 and 4D-28 Below 1 Ω

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

    2. Inspect the IG1 No. 2 relay.


      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        4F-1 - 4C-41 Battery voltage not applied to terminals 4B-46 and 4D-28 10 kΩ or higher
        Battery voltage applied to terminals 4B-46 and 4D-28 Below 1 Ω

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

    3. Inspect the IG1 No. 3 relay.


      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        4F-1 - 4D-34 Battery voltage not applied to terminals 4B-46 and 4D-28 10 kΩ or higher
        Battery voltage applied to terminals 4B-46 and 4D-28 Below 1 Ω

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

  2. INSPECT EFI MAIN NO. 1 RELAY (EFI MAIN NO. 1)

    A01HH76E01

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage not applied to terminals 1 and 2 10 kΩ or higher
      Battery voltage applied to terminals 1 and 2 Below 1 Ω

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

  3. INSPECT EFI MAIN NO. 2 RELAY (EFI MAIN NO. 2)

    A01HH76E01

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage not applied to terminals 1 and 2 10 kΩ or higher
      Battery voltage applied to terminals 1 and 2 Below 1 Ω

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

  4. INSPECT EFI MAIN NO. 3 RELAY (EFI MAIN NO. 3)

    A01HH76E01

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage not applied to terminals 1 and 2 10 kΩ or higher
      Battery voltage applied to terminals 1 and 2 Below 1 Ω

      If the result is not as specified, replace the EFI main No. 3 relay.

  5. INSPECT EDU RELAY (EDU)

    A01HH76E01

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage not applied to terminals 1 and 2 10 kΩ or higher
      Battery voltage applied to terminals 1 and 2 Below 1 Ω

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

  6. INSPECT IGNITION NO. 2 MAIN RELAY (IG2-MAIN)

    A01HH76E01

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage not applied to terminals 1 and 2 10 kΩ or higher
      Battery voltage applied to terminals 1 and 2 Below 1 Ω

      If the result is not as specified, replace the ignition No. 2 main relay.