Nissan Versa (N17): System
Relay control system
RELAY CONTROL SYSTEM : 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.
Power consumption control system
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:
Rear window defroster switch
To defrost the rear window glass, start the engine
and push the rear window defroster switch on.
The rear window defroster indicator light on the
switch comes on. Push the switch again to turn
the defroster off.
The rear window defroster automatically turns off
after approximately 15 m ...
Additional service when replacing
TCM
Description
Always perform the following items when the TCM is replaced.
LOADING OF THE CALIBRATION DATA
The TCM acquires calibration data (individual characteristic value) of
each solenoid that is stored in the
ROM assembly (in the control valve). This enables the TCM to perform
accur ...
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