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Home >> Toyota >> 2020 >> Highlander L, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Engine Control System (T24A-FTS) - Service Information) >> Relay >> On-Vehicle Inspection [10/2022 - 11/2023] >> Procedure

On-Vehicle Inspection [10/2022 - 11/2023]: Procedure

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  1. INSPECT INJECTOR RELAY (IGT/INJ) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY751946Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

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

      If the result is not as specified, replace the injector relay (IGT/INJ).

  2. INSPECT ELECTRONIC DRIVER UNIT RELAY (D INJ) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1103358Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

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

      If the result is not as specified, replace the electronic driver unit relay (D INJ).

  3. INSPECT NO. 1 ELECTRONIC FUEL INJECTION MAIN RELAY (EFI-MAIN NO. 1) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY751946Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

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

      If the result is not as specified, replace the No. 1 electronic fuel injection main relay (EFI-MAIN NO. 1).

  4. INSPECT NO. 2 ELECTRONIC FUEL INJECTION MAIN RELAY (EFI-MAIN NO. 2) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY751946Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

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

      If the result is not as specified, replace the No. 2 electronic fuel injection main relay (EFI-MAIN NO. 2).

  5. INSPECT NO. 3 ELECTRONIC FUEL INJECTION MAIN RELAY (EFI-MAIN NO. 3) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY751946Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

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

      If the result is not as specified, replace the No. 3 electronic fuel injection main relay (EFI-MAIN NO. 3).

  6. INSPECT NO. 2 IGNITION RELAY (IG2 NO. 1) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY751946Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

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

      If the result is not as specified, replace the No. 2 ignition relay (IG2 NO. 1).