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Home >> Lexus >> 2008 >> IS F >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Cooling >> Relay >> On-Vehicle Inspection

On-Vehicle Inspection

  1. INSPECT FAN NO. 1 RELAY 
    1. Remove the relay from the engine room No. 1 relay block
      Fig 1: Inspecting Fan No. 1 Relay
      G05750285Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the relay.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      3-5 Normal 10 kΩ or higher
      3-5 Battery voltage applied between terminals 1 and 2 Below 1 Ω

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

    3. Install the relay to the engine room No. 1 relay block.
  2. INSPECT FAN NO. 2 RELAY 
    1. Remove the relay from the engine room No 1 relay block.
    2. Measure the resistance of the relay
      Fig 2: Inspecting Fan No. 2 Relay
      G05750285Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      3-5 Normal 10 kΩ or higher
      3-5 Battery voltage applied between terminals 1 and 2 Below 1 Ω

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

    3. Install the relay to the engine room No 1 relay block.
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