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Integration Relay: Inspection

  1. INSPECT INTEGRATION RELAY 
    1. Inspect the AM2 (15A) fuse.
      1. Disconnect the fuse. Using an ohmmeter, measure the resistance of the fuse.

        Standard resistance 

        INTEGRATION RELAY (AM2 (15A) fuse)

        Tester Connection Specified condition
        1-2 Below 1 ohms
    2. Inspect the IG2 relay.
      1. Using an ohmmeter, measure the resistance between the terminals.

        Standard resistance 

        INTEGRATION RELAY (IG2 RELAY)

        Tester Connection Specified condition
        B1-C1 Below 1 ohms
        B4-C1 Below 1 ohms (when battery voltage applied to terminals 1 and 2)
        10 k ohms or higher
        Fig 1: Identifying Integration Relay Terminals & AM2 (15A) Fuse
        G04829438Courtesy 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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