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Home >> Toyota >> 2009 >> Corolla S, 1.8 L, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Cooling System (2AZ-FE)) >> Relay >> On-Vehicle Inspection

On-Vehicle Inspection

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  1. INSPECT COOLING FAN RELAY NO. 1 
    1. Remove the relay from the engine room relay block.
    2. Measure the resistance of the relay.

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      3-5 - 10 kΩ or higher
      3-5 When battery voltage is applied to terminals 1 and 2 Below 1 Ω

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

    3. Install the relay.
      Fig 1: Inspecting Cooling Fan Relay No. 1
      G04975258Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT COOLING FAN RELAY NO. 2 
    1. Remove the relay from the engine room relay block.
    2. Measure the resistance of the relay.

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      3-4 - Below 1 Ω
      3-4 When battery voltage is applied to terminals 1 and 2 10 kΩ or higher
      3-5 - 10 kΩ or higher
      3-5 When battery voltage is applied to terminals 1 and 2 Below 1 Ω

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

    3. Install the relay.
      Fig 2: Inspecting Cooling Fan Relay No. 2
      G04975259Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT COOLING FAN RELAY NO. 3 
    1. Remove the relay from the engine room relay block.
    2. Measure the resistance of the relay.

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      3-5 - 10 kΩ or higher
      3-5 When battery voltage Is applied to terminals 1 and 2 Below 1 Ω

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

    3. Install the relay.
      Fig 3: Inspecting Cooling Fan Relay No. 3
      G06009344Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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