LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2017 >> BRZ Series.Yellow >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Service Information) >> Oxygen sensor (FA20) >> Relay >> Unit inspection
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Unit inspection

  1. Inspection of IG2 relay (IG2)
    1. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATIONS

    Inspection terminals Inspection conditions Standard value
    3 - 5 When the battery voltage is not applied to the terminal 1 and terminal 2: 10 k Ωor more
    3 - 5 When the battery voltage is applied to the terminal 1 and terminal 2: Less than 1 Ω
    Fig 1: Inspecting Relay Connector Terminals (IG2)
    G11258427Courtesy of SUBARU OF AMERICA, INC.
  2. Inspection of EFI relay (EFI MAIN1)
    1. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATIONS

    Inspection terminals Inspection conditions Standard value
    3 - 5 When the battery voltage is not applied to the terminal 1 and terminal 2: 10 k Ωor more
    3 - 5 When the battery voltage is applied to the terminal 1 and terminal 2: Less than 1 Ω
    Fig 2: Inspecting Relay Connector Terminals (EFI MAIN1)
    G11258428Courtesy of SUBARU OF AMERICA, INC.
  3. Inspection of EFI relay (EFI MAIN2)
    1. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATIONS

    Inspection terminals Inspection conditions Standard value
    3 - 5 When the battery voltage is not applied to the terminal 1 and terminal 2: 10 k Ωor more
    3 - 5 When the battery voltage is applied to the terminal 1 and terminal 2: Less than 1 Ω
    Fig 3: Inspecting Relay Connector Terminals (EFI MAIN2)
    G11258429Courtesy of SUBARU OF AMERICA, INC.
  4. Inspection of EFI relay (EFI MAIN3)
    1. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATIONS

    Inspection terminals Inspection conditions Standard value
    3 - 5 When the battery voltage is not applied to the terminal 1 and terminal 2: 10 k Ωor more
    3 - 5 When the battery voltage is applied to the terminal 1 and terminal 2: Less than 1 Ω
    Fig 4: Inspecting Relay Connector Terminals (EFI MAIN3)
    G11258430Courtesy of SUBARU OF AMERICA, INC.
  5. Inspection of INJ relay (INJ)
    1. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATIONS

    Inspection terminals Inspection conditions Standard value
    3 - 5 When the battery voltage is not applied to the terminal 1 and terminal 2: 10 k Ωor more
    3 - 5 When the battery voltage is applied to the terminal 1 and terminal 2: Less than 1 Ω
    Fig 5: Inspecting Relay Connector Terminals (INJ)
    G11258431Courtesy of SUBARU OF AMERICA, INC.
  6. Inspection of ETCS relay (ETCS)
    1. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATIONS

    Inspection terminals Inspection conditions Standard value
    3 - 5 When the battery voltage is not applied to the terminal 1 and terminal 2: 10 k Ωor more
    3 - 5 When the battery voltage is applied to the terminal 1 and terminal 2: Less than 1 Ω
    Fig 6: Inspecting Relay Connector Terminals (ETCS)
    G11258432Courtesy of SUBARU OF AMERICA, INC.
  7. Inspection of F/PMP relay (C/OPEN)
    1. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATIONS

    Inspection terminals Inspection conditions Standard value
    3 - 5 When the battery voltage is not applied to the terminal 1 and terminal 2: 10 k Ωor more
    3 - 5 When the battery voltage is applied to the terminal 1 and terminal 2: Less than 1 Ω
    Fig 7: Inspecting Relay Connector Terminals (C/OPEN)
    G11258433Courtesy of SUBARU OF AMERICA, INC.
scientia non olet · About LEMON Manuals