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Home › Nissan-Datsun › 2009 › Altima Base › Repair and Diagnosis › External Pages › Different variant/trim › Section 33 (Security Control System (Hybrid)) › Function Diagnosis › Intelligent Key System/Engine Start Function › System Description › Operation When Intelligent Key Is Carried

Operation When Intelligent Key Is Carried

WARNING: This page is about a different variant/trim than selected.
  1. When the push-button ignition switch is pressed and brake pedal depressed, the BCM signals 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 via the remote keyless entry receiver.
  3. The BCM receives the Intelligent Key ID signal and verifies it with the registered ID.
  4. BCM transmits the steering lock 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 and supplies power to the steering lock unit.
  6. Release of the steering lock will now occur.
  7. BCM transmits the power supply stop signal to IPDM E/R when it confirms that the steering lock is in the unlock condition.
  8. IPDM E/R turns the steering lock relay OFF and stops 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 and starts the ignition power supply.
  11. BCM confirms that the shift position is P.
  12. BCM transmits the hybrid system start request signal via hardwire to Hybrid Vehicle Control ECU. If BCM judges that the hybrid system start condition is satisfied.
    CAUTION: If a malfunction is detected in the Intelligent Key system, the "KEY" warning lamp in the combination meter illuminates. At that time, the engine cannot be started.

    *: For the hybrid system start condition, refer to "PUSH-BUTTON IGNITION SWITCH OPERATION PROCEDURE ".

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