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Home >> Nissan-Datsun >> 2022 >> Leaf SV Plus >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Security Control System (With Intelligent Key System) >> Description >> System >> NISSAN Vehicle Immobilizer System-NATS >> System Description >> Operation When Intelligent Key Is Contacted To Power Switch
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Operation When Intelligent Key Is Contacted To Power Switch

  1. When brake pedal is depressed while shift position is P, BCM activates NATS antenna amp. which is located behind power switch.
  2. When Intelligent Key (transponder built-in) backside is contacted to power switch, BCM starts NVIS (NATS) ID verification between BCM and Intelligent Key (transponder built-in) via NATS antenna amp.
  3. When the NVIS (NATS) ID verification result is OK, buzzer in combination meter sounds.
  4. BCM turns ACC relay ON and transmits ON power supply signal to IPDM E/R.
  5. IPDM E/R turns the ignition relay ON to start ON power supply.
  6. BCM detects that the shift position and brake pedal operating position.
  7. BCM transmits READY signal to VCM if BCM judges that the READY set condition* is satisfied.

    *: For READY set condition, refer to "READY SET CONDITION TABLE BY POWER SWITCH OPERATION" below.

  8. When BCM receives feedback signal from VCM indicating that the vehicle is set to READY, BCM stops transmitting READY signal.
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