Nissan Versa (N17): System

Nissan Versa 2nd generation (N17) Service Manual / Electrical & power control / Power control system (PCS) / System

Relay control system

RELAY CONTROL SYSTEM : System Diagram

SYSTEM DIAGRAM

SYSTEM DIAGRAM

RELAY CONTROL SYSTEM : System Description

DESCRIPTION

IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input signals from various sensors and the request signals received from control units via CAN communication.

CAUTION: IPDM E/R integrated relays cannot be removed.

DESCRIPTION

Power consumption control system

POWER CONSUMPTION CONTROL SYSTEM : System Diagram

POWER CONSUMPTION CONTROL SYSTEM : System Diagram

POWER CONSUMPTION CONTROL SYSTEM : System Description

DESCRIPTION

Outline

  • IPDM E/R incorporates a power consumption control function that reduces the power consumption according to the vehicle status.
  • IPDM E/R changes its status (control mode) with the sleep wake up signal received from BCM via CAN communication.

Normal mode (wake-up)

  • CAN communication is normally performed with other control units.
  • Individual unit control by IPDM E/R is normally performed.

Low power consumption mode (sleep)

  • Low power consumption control is active.
  • CAN transmission is stopped.

Sleep Mode Activation

  • IPDM E/R judges that the sleep-ready conditions are fulfilled when the ignition switch is OFF and none of the conditions below are present. Then it transmits a sleep-ready signal (ready) to BCM via CAN communication.
  • Outputting signals to actuators
  • Switches or relays operating
  • Output requests are being received from control units via CAN communication.
  • IPDM E/R stops CAN communication and enters the low power consumption mode when it receives a sleep wake up signal (sleep) from BCM and the sleep-ready conditions are fulfilled.

Wake-up Operation

  • IPDM E/R changes from the low power consumption mode to the normal mode when it receives a sleep wake-up signal (wake up) from BCM or any of the following conditions is fulfilled. In addition, it transmits a sleep-ready signal (not-ready) to BCM via CAN communication to report the CAN communication start.
  • Ignition switch ON
  • An output request is received from a control unit via CAN communication.

Precautions

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", us ...

Diagnosis system (IPDM E/R)

Diagnosis Description AUTO ACTIVE TEST Description In auto active test, the IPDM E/R sends a drive signal to the following systems to check their operation. Front wiper (LO, HI) Parking l ...

Other materials:

Continuously Variable Transmission (CVT) fluid (if so equipped)
CAUTION NISSAN recommends using Genuine NISSAN CVT Fluid NS-3 (or equivalent) ONLY in NISSAN CVTs. Do not mix with other fluids. Do not use Automatic transmission fluid (ATF) or Manual transmission fluid in a NISSAN CVT, as it may damage the CVT. Damage caused by the use of fluids ...

Explanation of scheduled maintenance items
The following descriptions are provided to give you a better understanding of the scheduled maintenance items that should be regularly checked or replaced. The maintenance schedule indicates at which mileage/time intervals each item requires service. In addition to scheduled maintenance, you ...

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