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Circuit Opening Relay: Inspection

  1. INSPECT CIRCUIT OPENING RELAY 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.
        Fig 1: Identifying Circuit Opening Relay
        G04968682Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

        Resistance 

        TESTER CONNECTION SPECIFIED CONDITION

        Tester Connection Specified Condition
        3-5 10 kΩ or higher
        3-5 Below 1 Ω (Apply battery voltage to terminals 1 and 2)

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

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