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Home >> Nissan-Datsun >> 2002 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 2221 (Security Control System (With Intelligent Key System)) >> System Description >> Intelligent Key System/Engine Start Function >> System Description >> Operation When Intelligent Key Is Carried
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Operation When Intelligent Key Is Carried

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. When the ignition knob switch is ON, the Intelligent Key unit 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 Intelligent Key unit.
  3. The Intelligent Key unit receives the Intelligent Key ID signal and verifies it with the registered ID.
  4. Intelligent Key unit transmits the steering lock/unlock signal to steering lock unit if the verification results are OK. For detail of key warning lamp operation, refer to "SYSTEM DESCRIPTION ".
  5. Release of the steering lock.
  6. BCM transmits the starter request signal via CAN communication to IPDM E/R and turns the starter relay in IPDM E/R ON if BCM judges that the engine start condition is satisfied.
  7. IPDM E/R turns the starter control relay ON when receiving the starter request signal.
  8. When shift position is in P or N position, battery power is supplied through the starter relay and operate the starter motor and to start the cranking.
CAUTION: If a malfunction is detected in the Intelligent Key system, the "NO KEY" warning message will be displayed in the combination meter. At that time, the engine cannot be started.
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