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Home >> Toyota >> 2017 >> RAV4 Limited, FWD >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Control System (2AR-FE) (Service Information) (Except Hybrid) >> Relay >> On-Vehicle Inspection [12/2012 - ] >> Procedure

On-Vehicle Inspection [12/2012 - ]: Procedure

  1. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    GTY379028Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Main Body ECU - -
    *a Component without harness connected
    (Instrument Panel Junction Block Assembly)    		 *b Component without main body ECU connected
    (Instrument Panel Junction Block Assembly)
    NOTE:

    Before performing the relay inspections for the relays of the instrument panel junction block assembly, inspect the ECU-IG No. 1, ECU-IG No. 3 and S-HTR RH fuses.

    1. Remove the instrument panel junction block assembly.

      Refer to REMOVAL [12/2012 - ]

    2. Remove the main body ECU from the instrument panel junction block assembly.
    3. Inspect the IG1 No. 1 relay.
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        3A-1 - 3B-50 Battery voltage is not applied to terminals 3C-43 and main body ECU-11 10 kΩ or higher
        3A-1 - 3B-50 Battery voltage is applied to terminals 3C-43 and main body ECU-11 Below 1 Ω

        If the result is not as specified, replace the instrument panel junction block assembly.

    4. Inspect the IG1 No. 2 relay.
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        3A-1 - 3B-19 Battery voltage is not applied to terminals 3C-43 and main body ECU-11 10 kΩ or higher
        3A-1 - 3B-19 Battery voltage is applied to terminals 3C-43 and main body ECU-11 Below 1 Ω

        If the result is not as specified, replace the instrument panel junction block assembly.

    5. Inspect the IG1 No. 3 relay.
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        3A-1 - 3C-3 Battery voltage is not applied to terminals 3C-43 and main body ECU-11 10 kΩ or higher
        3A-1 - 3C-3 Battery voltage is applied to terminals 3C-43 and main body ECU-11 Below 1 Ω

        If the result is not as specified, replace the instrument panel junction block assembly.

    6. Install the main body ECU to the instrument panel junction block assembly.
    7. Install the instrument panel junction block assembly.

      Refer to INSTALLATION [12/2012 - 08/2016] or INSTALLATION [08/2016 - ]

  2. INSPECT NO. 2 IGNITION RELAY (IG2) 
    GTY373106Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

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

      If the result is not as specified, replace the No. 2 ignition relay.

  3. INSPECT CIRCUIT OPENING RELAY ASSEMBLY (C/OPN) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

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

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

      GTY373106Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT EFI MAIN NO. 1 RELAY (EFI-MAIN NO. 1) 
    GTY373106Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

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

      If the result is not as specified, replace the EFI main No. 1 relay.

  5. INSPECT EFI MAIN NO. 2 RELAY (EFI-MAIN NO. 2) 
    GTY373106Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

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

      If the result is not as specified, replace the EFI main No. 2 relay.

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