System Description

SYSTEM DIAGRAM 

Courtesy of NISSAN NORTH AMERICA, INC.

SYSTEM DESCRIPTION 

• POWER DISTRIBUTION SYSTEM is the system that BCM controls with the operation of push-button ignition switch and performs the power distribution to each power circuit. This system is used instead of the mechanical power supply changing mechanism with the operation of the conventional key cylinder.
• Push-button ignition switch can be operated when Intelligent Key is in the following condition.
  • Intelligent Key is in the detection area of the inside key antenna.
  • Intelligent Key backside is contacted to push-button ignition switch.
• Push-button ignition switch operation is input to BCM as a signal. BCM changes the ignition switch position according to the status and operates the following relays to supply power to each power circuit.
  • Ignition relay (IPDM E/R)
  • Ignition relay [fuse block (J/B)]
  • Accessory relay
  • Blower relay
• The ignition switch position can be confirmed with the lighting of the ACC/ON indicator lamp in push-button ignition switch.

IGNITION BATTERY SAVER SYSTEM 

When all the following conditions are met for a period of time, the battery saver system will cut off the power supply (ignition switch ON/ACC → OFF) to prevent battery discharge.

• Ignition switch is in the ACC or ON position
• Turn signal lamp is not in operation
• Selector lever is in the P (park) position

Reset Condition of Ignition Battery Saver System 

If any of the following conditions are met, the battery saver system is released.

• Ignition switch is not in the ACC or ON position
• Turn signal lamp is in operation
• Selector lever is not in the P (park) position