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Home >> Toyota >> 2010 >> RAV4 Base, 3.5 K, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Engine Control System (2GR-FE) (Service Information) >> Integration Relay >> On-Vehicle Inspection >> On-Vehicle Inspection
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

On-Vehicle Inspection

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    WARNING:

    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

  2. INSPECT INTEGRATION RELAY 
    NOTE:
    • The EFI relay is built into the integration relay (unit A: EFI MAIN).
    • Some relays are built into the integration relay. The integration relay cannot be disassembled. If there is a malfunction in the circuit of the integration relay, replace the integration relay.
    1. Using a screwdriver, detach the 2 claws and disconnect the integration relay from the engine room No. 1 junction block.
      Fig 1: Identifying Integration Relay From Engine Room No. 1 Junction Block
      GTY237390Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Tape the screwdriver tip before use.

    2. Disconnect the 3 connectors from the integration relay.
    3. Inspect the EFI MAIN relay.
      1. Check the resistance of the EFI MAIN fuse.
        Fig 2: Identifying Integration Relay
        GTY237104Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      2. Measure the resistance of the integration relay.

        Standard resistance

        Tester Connection Specified Condition
        1A-4 - 1C-1 10 kΩ or higher
        1A-4 - 1A-1
        1A-4 - 1C-1 Below 1 Ω (when battery voltage is applied to terminals 1A-3 and 1A-2)
        1A-4 - 1A-1

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

    4. Inspect the A/F relay.
      1. Check the resistance of the A/F fuse.
        Fig 3: Identifying A/F Relay Terminals
        GTY233194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      2. Measure the resistance of the integration relay.

        Standard resistance

        Tester Connection Specified Condition
        1B-8 - 1C-1 10 kΩ or higher
        1B-8 - 1B-5
        1B-8 - 1C-1 Below 1 Ω (when battery voltage is applied to terminals 1B-6 and 1B-7)
        1B-8 - 1B-5

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

  3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
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