Nissan Murano. Manual - part 1061

PCS-6

< SYSTEM DESCRIPTION >

[IPDM E/R]

POWER CONTROL SYSTEM

POWER CONTROL SYSTEM

System Diagram

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System Description

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ALTERNATOR CONTROL

IPDM E/R outputs power generation command signal (PWM signal) to the alternator according to the status of
the power generation command value signal received from ECM via CAN communication. Refer to 

CHG-12,

"System Diagram"

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JPMIA0908GB

PCS

SIGNAL BUFFER SYSTEM

PCS-7

< SYSTEM DESCRIPTION >

[IPDM E/R]

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SIGNAL BUFFER SYSTEM

System Diagram

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System Description

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• IPDM E/R reads the status of the oil pressure switch and transmits the oil pressure switch signal to BCM via

CAN communication. Refer to 

MWI-22, "WARNING LAMPS/INDICATOR LAMPS : System Diagram"

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• IPDM E/R receives the rear window defogger control signal from BCM via CAN communication and trans-

mits it to ECM and AV control unit via CAN communication. Refer to 

DEF-4, "WITH BOSE SYSTEM : Sys-

tem Diagram"

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JPMIA0862GB

PCS-8

< SYSTEM DESCRIPTION >

[IPDM E/R]

POWER CONSUMPTION CONTROL SYSTEM

POWER CONSUMPTION CONTROL SYSTEM

System Diagram

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System Description

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OUTLINE

• IPDM E/R incorporates a power consumption control function that reduces the power consumption accord-

ing to the vehicle status. 

• IPDM E/R changes its status (control mode) with the sleep wake up signal received from BCM via CAN com-

munication.

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 communica-
tion.

- 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.

JPMIA0906GB

PCS

POWER CONSUMPTION CONTROL SYSTEM

PCS-9

< SYSTEM DESCRIPTION >

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Component Parts Location

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1.

Combination meter

2.

IPDM E/R

3.

BCM

4.

Driver seat control unit

5.

Automatic back door control unit

A.

Engine room (LH)

B.

Behind of combination meter

C.

Backside of the seat cushion (driver 
seat)

D.

Dash side lower (Passenger side)

JPMIA0899ZZ