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Home >> Infiniti >> 2012 >> M35h >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Security Control System >> System Description >> System >> Intelligent Key System/Ready Set Function >> INTELLIGENT KEY SYSTEM/READY SET FUNCTION: System Description >> Operation When Intelligent Key Is Carried
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Operation When Intelligent Key Is Carried

Models with steering lock unit

  1. When the push-button ignition switch is pressed, the BCM activates the inside key antenna and transmits the request signal to the Intelligent Key.
  2. The Intelligent Key receives the request signal and transmits the Intelligent Key ID signal to the BCM.
  3. BCM receives the Intelligent Key ID signal via remote keyless entry receiver and verifies it with the registered ID.
  4. BCM transmits the unlock signal to steering lock unit and IPDM E/R if the verification results are OK.
  5. IPDM E/R turns the steering lock relay ON to supply power source to the steering lock unit.
  6. The steering lock releases.
  7. BCM transmits the power supply stop signal to IPDM E/R when detecting that the steering lock is in the unlock condition.
  8. IPDM E/R turns the steering lock relay OFF to stop power supply to the steering lock unit.
  9. BCM turns ACC relay ON and transmits the ignition power supply ON signal to IPDM E/R.
  10. IPDM E/R turns the ignition relay ON to start the ignition power supply.
  11. BCM detects that the selector lever position and brake pedal operating condition.
  12. BCM transmits READY signal to HPCM if BCM judges that the READY set condition* is satisfied.

    *: For READY set condition, refer to "READY SET CONDITION TABLE BY PUSH-BUTTON IGNITION SWITCH OPERATION " below.

    CAUTION:
    • If a malfunction is detected in the Intelligent Key system, "I-KEY system fault" on information display appears. In this case, BCM does not transmits READY signal.
    • When the Intelligent Key is carried outside of the vehicle (inside key antenna detection area) while the ignition switch position is ACC or ON, BCM does not transmits READY signal even if READY set condition* is satisfied.
  13. When BCM receives feedback signal from HPCM indicating that the vehicle is set to READY, BCM stops transmitting READY.

Models without steering lock unit

  1. When the push-button ignition switch is pressed, the BCM activates the inside key antenna and transmits the request signal to the Intelligent Key.
  2. The Intelligent Key receives the request signal and transmits the Intelligent Key ID signal to the BCM.
  3. BCM receives the Intelligent Key ID signal via remote keyless entry receiver and verifies it with the registered ID.
  4. BCM turns ACC relay ON and transmits the ignition power supply ON signal to IPDM E/R.
  5. IPDM E/R turns the ignition relay ON to start the ignition power supply.
  6. BCM detects that the selector lever position and brake pedal operating condition.
  7. BCM transmits READY signal to HPCM if BCM judges that the READY set condition* is satisfied.

    *: For READY set condition, refer to "READY SET CONDITION TABLE BY PUSH-BUTTON IGNITION SWITCH OPERATION " below.

    CAUTION:
    • If a malfunction is detected in the Intelligent Key system, "I-KEY system fault" on information display appears. In this case, BCM does not transmits READY signal.
    • When the Intelligent Key is carried outside of the vehicle (inside key antenna detection area) while the ignition switch position is ACC or ON, BCM does not transmits READY signal even if READY set condition* is satisfied.
  8. When BCM receives feedback signal from HPCM indicating that the vehicle is set to READY, BCM stops transmitting READY.