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Cannot remove or insert the key

Circuit description

The control unit relay ASSY outputs a signal to the key interlock solenoid when the ACC signal and P signal are input.

Circuit figure

For a circuit figure, refer to Cannot remove or insert the key .

Inspection steps

CAUTION: Before performing troubleshooting, check the fuse for this circuit.
  1. Check wiring harness and connector (ACC voltage)
    NOTE: For inspection procedures and precautions, refer to Inspection procedures for electrical circuits and how to perform .
    1. Disconnect the connector D42 of control unit relay ASSY.
    2. Measure the voltage between the terminals.
    VOLTAGE SPECIFICATION

    Inspection terminals Inspection conditions Standard value
    D42-6 (ACC) - chassis ground IG ON 11 to 14 V
    Fig 1: Identifying Control Unit Relay Assembly Connector Terminals
    G11259198Courtesy of SUBARU OF AMERICA, INC.

    NG: Repair or replacement of wiring harness or connector

    OK: Go to next Step.

  2. Check wiring harness and connector (control unit relay ASSY - chassis ground)
    NOTE: For inspection procedures and precautions, refer to Inspection procedures for electrical circuits and how to perform .
    1. Disconnect the connector D42 of control unit relay ASSY.
    2. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATION

    Inspection terminals Inspection conditions Standard value
    D42-1 (E) - chassis ground Always Less than 1 Ω

    NG: Repair or replacement of wiring harness or connector

    OK: Go to next Step.

  3. P switch (floor shift, shift lever housing) unit inspection
    1. Perform the P switch (floor shift, shift lever housing) unit inspection. (Refer to Unit inspection )

    NG: P switch (floor shift, shift lever housing) replacement (Refer to Disassembly )

    OK: Go to next Step.

  4. Check wiring harness and connector (control unit relay ASSY - P switch (floor shift, shift lever housing))
    NOTE: For inspection procedures and precautions, refer to Inspection procedures for electrical circuits and how to perform .
    1. Disconnect the connector D42 of control unit relay ASSY.
    2. Disconnect the connector D28 of P switch (floor shift, shift lever housing).
    3. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATION (OPEN CIRCUIT CHECK)

    Inspection terminals Inspection conditions Standard value
    D42-4 (P) - D28-1 (P) Always Less than 1 Ω
    RESISTANCE ASSEMBLY SPECIFICATION (SHORT CIRCUIT CHECK)

    Inspection terminals Inspection conditions Standard value
    D42-4 (P) and D28-1 (P) - other terminals and chassis ground Always 10 kΩ or more

    NG: Repair or replacement of wiring harness or connector

    OK: Go to next Step.

  5. Check wiring harness and connector (P switch (floor shift, shift lever housing) - chassis ground)
    NOTE: For inspection procedures and precautions, refer to Inspection procedures for electrical circuits and how to perform .
    1. Disconnect the connector D28 of P switch (floor shift, shift lever housing).
    2. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATION

    Inspection terminals Inspection conditions Standard value
    D28-3 (E) - chassis ground Always Less than 1 Ω

    NG: Repair or replacement of wiring harness or connector

    OK: Go to next Step.

  6. Key interlock solenoid check
    1. Disconnect the connector D60 of key interlock solenoid.
    2. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATION

    Inspection terminals Inspection conditions Standard value
    1 - 2 20°C 13.05 to 15.95Ω
    Fig 2: Identifying Key Interlock Solenoid Connector Terminals
    G11259199Courtesy of SUBARU OF AMERICA, INC.

    NG: Key interlock solenoid replacement (Refer to Disassembly )

    OK: Go to next Step.

  7. Check wiring harness and connector (control unit relay ASSY - key interlock solenoid)
    NOTE: For inspection procedures and precautions, refer to Inspection procedures for electrical circuits and how to perform .
    1. Disconnect the connector D42 of control unit relay ASSY.
    2. Disconnect the connector D60 of key interlock solenoid.
    3. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATION (OPEN CIRCUIT CHECK)

    Inspection terminals Inspection conditions Standard value
    D42-5 (KLS+) - D60-2 Always Less than 1 Ω
    RESISTANCE ASSEMBLY SPECIFICATION (SHORT CIRCUIT CHECK)

    Inspection terminals Inspection conditions Standard value
    D42-5 (KLS+) and D60-2 - other terminals and chassis ground Always 10 kΩ or more

    NG: Repair or replacement of wiring harness or connector

    OK: Go to next Step.

  8. Check wiring harness and connector (key interlock solenoid - chassis ground)
    NOTE: For inspection procedures and precautions, refer to Inspection procedures for electrical circuits and how to perform .
    1. Disconnect the connector D60 of key interlock solenoid.
    2. Measure the resistance between the terminals.
    RESISTANCE SPECIFICATION

    Inspection terminals Inspection conditions Standard value
    D60-1 - chassis ground Always Less than 1 Ω

    NG: Repair or replacement of wiring harness or connector

    OK: Control unit relay ASSY replacement (Refer to Key lock unit )

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