2013 Toyota Land CruiserFACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

  1. INSPECT INTEGRATION RELAY (IG2) 
    1. Measure the resistance of the IG2 MAIN fuse.
      1. Remove the IG2 MAIN fuse from the integration relay.
      2. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        IG2 MAIN fuse Always Below 1 Ω

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

      3. Install the IG2 MAIN fuse to the integration relay.
    2. Measure the resistance of the ignition relay No. 2 (IG2) circuit.
      Fig 1: Identifying Integration Relay
      GTY135077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

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

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

  2. INSPECT INTEGRATION RELAY (EFI) 
    1. Measure the resistance of the EFI MAIN fuse.
      1. Remove the EFI MAIN fuse from the integration relay
      2. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        EFI MAIN fuse Always Below 1 Ω

        If the result is not as specified, replace the EFI MAIN fuse.

      3. Install the EFI MAIN fuse to the integration relay.
    2. Measure the resistance of the EFI relay circuit.
      Fig 2: Identifying Integration Relay
      GTY135077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

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

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

  3. INSPECT EFI NO. 2 RELAY 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 3: Identifying Terminals Of EFI NO. 2 Relay
      GTY144195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

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

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

  4. INSPECT INTEGRATION RELAY (A/F) 
    1. Measure the resistance of the A/F fuse.
      1. Remove the A/F fuse from the integration relay.
      2. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        A/F fuse Always Below 1 Ω

        If the result is not as specified, replace the A/F fuse.

      3. Install the A/F fuse to the integration relay.
    2. Measure the resistance of the A/F sensor heater relay circuit.
      Fig 4: Identifying Terminals Of Integration Relay
      GTY145409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

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

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

  5. INSPECT MAIN BODY ECU (IG1 NO. 1) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 5: Identifying Main Body ECU Connector
      GTY148695Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      2A-1 - 2B-17 Battery voltage is not applied to terminals 2B-5 and 2D-43 10 kΩ or higher
      Battery voltage is applied to terminals 2B-5 and 2D-43 Below 1 Ω

      If the result is not as specified, replace the main body ECU.

  6. INSPECT STARTER RELAY (ST)  . Refer to ON-VEHICLE INSPECTION - Step 1
  7. INSPECT STARTER CUT RELAY (ST CUT)  . Refer to ON-VEHICLE INSPECTION - Step 2
  8. INSPECT MAIN BODY ECU (ACC RELAY)  . Refer to ON-VEHICLE INSPECTION - Step 3
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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