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:

Cold weather driving
Freeing a frozen door lock To prevent a door lock from freezing, apply deicer through the key hole. If the lock becomes frozen, heat the key before inserting it into the key hole, or use the remote keyless entry key fob or the NISSAN Intelligent Key. Antifreeze In the winter when it is antic ...

U0155 Lost communication (IPC)
DTC Logic DTC DETECTION LOGIC DTC Trouble diagnosis name DTC detection condition Possible causes U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module When the ignition switch is ON, TCM is unable to receive the CAN communications ...

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