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Integration Relay: Inspection

  1. INSPECT INTEGRATION RELAY 
    1. Inspect the EFI (20A) fuse.
      1. Disconnect the fuse.
      2. Using an ohmmeter, measure the resistance of the fuse.

        Standard resistance 

        RESISTANCE REFERENCE

        Tester Connection Specified Condition
        1 - 2 Below 1 Ω
    2. Inspect the EFI relay.
      1. Using an ohmmeter, measure the resistance between the terminals.

        Standard resistance 

        RESISTANCE REFERENCE

        Tester Connection Specified Condition
        A4 - C1 10 kΩ or higher
        Below 1 Ω (Battery voltage applied between terminals A2 and A3)
        Fig 1: Inspecting Integration Relay
        G04828445Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE: While using the battery for the inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.
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