Nissan Maxima Service and Repair Manual: Power consumption control system
System Diagram

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.
- Front wiper fail-safe operation
- Outputting signals to actuators
- Switches or relays operating
- Auto active test is starting
- Emergency OFF
- 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.
Component Parts Location

- BCM M16, M17, M18, M19, M20,
M21 (view with instrument panel removed)
- Combination meter M24
- IPDM E/R E16, E17, E18, E200,
E201, F10
System Diagram
System Description
IPDM E/R reads the status of the oil pressure switch and transmits the
oil pressure switch signal to BCM via
CAN communication.
IPDM E/R receives the ...
Diagnosis Description
AUTO ACTIVE TEST
Description
In auto active test mode, the IPDM E/R sends a drive signal to the following
systems to check their operation.
Oil pressure warning lamp
F ...
Other materials:
Power seat for passenger side
Wiring Diagram
...
P0507 ISC system
Description
The ECM controls the engine idle speed to a specified level via the fine
adjustment of the air, which is let into
the intake manifold, by operating the electric throttle control actuator. The
operating of the throttle valve is varied
to allow for optimum control of the engine id ...
Power window and door lock/unlock switch RH
Removal and Installation
REMOVAL
Remove the front door grip cover. Refer to INT-18, "Removal and
Installation".
Remove the clip (A) from the door grip using suitable tool.
Release the metal clip and lift the power window and door lock/
unlock switch (2) and switc ...