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HV Relay Assembly: Inspection: Inspection

WARNING: This page is about a different car, the 2012 Lexus CT 200h. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY 
    1. Inspect SMRB
      1. Measure the resistance according to the value(s) in the table below.
        Fig 1: Identifying Hybrid Battery Junction Block Assembly Connector Terminal (SMRB, GND)
        GTY212040Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Resistance

        Tester Connection Condition Specified Condition
        (+) connector - (+) terminal Auxiliary battery voltage is not applied between terminals 4 (SMRB) and 2 (GND) 10 kΩ or higher
        (+) connector - (+) terminal Auxiliary battery voltage is applied between terminals 4 (SMRB) and 2 (GND) Below 1 Ω
        TEXT IN ILLUSTRATION

        *1 Hybrid Battery Junction Block Assembly
        *2 (+) Connector
        *3 (+) Terminal
      2. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        4 (SMRB) - 2 (GND) -40 to 176°F (-40 to 80°C) 19.0 to 35.5 Ω

        If the result is not as specified, replace the hybrid battery junction block assembly.

    2. Inspect SMRG
      1. Measure the resistance according to the value(s) in the table below.
        Fig 2: Identifying Hybrid Battery Junction Block Assembly Connector Terminal (GND, SMRG)
        GTY212036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Resistance

        Tester Connection Condition Specified Condition
        (-) connector - (-) terminal Auxiliary battery voltage is not applied between terminals 1 (SMRG) and 2 (GND) 10 kΩ or higher
        (-) connector - (-) terminal Auxiliary battery voltage is applied between terminals 1 (SMRG) and 2 (GND) Below 1 Ω
        TEXT IN ILLUSTRATION

        *1 Hybrid Battery Junction Block Assembly
        *2 (-) Connector
        *3 (-) Terminal
      2. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        1 (SMRG) - 2 (GND) -40 to 176°F (-40 to 80°C) 19.0 to 35.5 Ω

        If the result is not as specified, replace the hybrid battery junction block assembly.

    3. Inspect SMRP and precharge resistor
      1. Measure the resistance according to the value(s) in the table below.
        Fig 3: Identifying Hybrid Battery Junction Block Assembly Connector Terminal (SMRP, GND)
        GTY212034Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Resistance

        Tester Connection Condition Specified Condition
        (-) connector - (-) terminal Auxiliary battery voltage is not applied between terminals 3 (SMRP) and 2 (GND) 10 kΩ or higher
        (-) connector - (-) terminal Auxiliary battery voltage is applied between terminals 3 (SMRP) and 2 (GND) 28.5 to 31.5 Ω
        TEXT IN ILLUSTRATION

        *1 Hybrid Battery Junction Block Assembly
        *2 (-) Connector
        *3 (-) Terminal
      2. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        3 (SMRP) - 2 (GND) -40 to 176°F (-40 to 80°C) 112 to 274 Ω

        If the result is not as specified, replace the hybrid battery junction block assembly.

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