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Home >> Toyota >> 2009 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Cooling System (1AR-FE)) >> Cooling Fan Relay >> On-Vehicle Inspection

On-Vehicle Inspection

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  1. INSPECT FAN MAIN RELAY 
    Fig 1: FAN MAIN Relay Circuit Diagram
    G05405583Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the FAN MAIN relay from the engine room relay block and junction block.
    2. Measure the resistance of the relay.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage is not applied between terminals 1 and 2 10 kΩ or higher
      3 - 5 Apply battery voltage between terminals 1 and 2 Below 1 Ω

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

    3. Install the FAN MAIN relay to the engine room relay block and junction block.
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