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

RELAY CONTROL SYSTEM : System Diagram

RELAY CONTROL SYSTEM : System 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: To prevent damage to the parts, IPDM E/R integrated relays cannot be removed.

RELAY CONTROL SYSTEM : System Description

POWER CONSUMPTION CONTROL SYSTEM

POWER CONSUMPTION CONTROL SYSTEM : System Diagram

POWER CONSUMPTION CONTROL SYSTEM : System Diagram

POWER CONSUMPTION CONTROL SYSTEM : System 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:

Starting the engine (models with NISSAN Intelligent Key system)
1. Apply the parking brake. 2. Move the shift lever to P (Park) or N (Neutral). P (Park) is recommended. The starter is designed not to operate if the shift lever is in any of the driving positions. 3. Push the ignition switch to the ON position. Depress the brake pedal and push the ...

4-speed automatic transmission fluid (ATF) (if so equipped)
When checking or replacement of automatic transmission fluid is required, it is recommended that you visit a NISSAN dealer for servicing. WARNING When the engine is running, keep hands, jewelry and clothing away from any moving parts such as the cooling fan and drive belts Automatic t ...

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