Nissan Teana J32. Manual - part 850

PCS-6

< FUNCTION DIAGNOSIS >

[IPDM E/R]

RELAY CONTROL SYSTEM

Component Parts Location

INFOID:0000000003773257

1.

IPDM E/R

A.

Engine room (LH)

JPMIA1037ZZ

PCS

POWER CONTROL SYSTEM

PCS-7

< FUNCTION DIAGNOSIS >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

POWER CONTROL SYSTEM

System Diagram

INFOID:0000000003773258

System Description

INFOID:0000000003773259

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-7,

"System Diagram"

.

Component Parts Location

INFOID:0000000003773260

JPMIA0908GB

1.

IPDM E/R

A.

Engine room (LH)

JPMIA1037ZZ

PCS-8

< FUNCTION DIAGNOSIS >

[IPDM E/R]

SIGNAL BUFFER SYSTEM

SIGNAL BUFFER SYSTEM

System Diagram

INFOID:0000000003773261

NOTE:
*: With BOSE audio system

System Description

INFOID:0000000003773262

• 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"

.

• IPDM E/R reads the status of the hood switch and transmits the hood switch signal to BCM via CAN commu-

nication. Refer to 

SEC-17, "System Diagram"

.

• 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 AV CONTROL UNIT :

System Diagram"

 or 

DEF-6, "WITHOUT AV CONTROL UNIT : System Diagram"

.

NOTE:
*: With BOSE audio system

Component Parts Location

INFOID:0000000003773263

JPMIA1043GB

1.

IPDM E/R

A.

Engine room (LH)

JPMIA1037ZZ

PCS

POWER CONSUMPTION CONTROL SYSTEM

PCS-9

< FUNCTION DIAGNOSIS >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

POWER CONSUMPTION CONTROL SYSTEM

System Diagram

INFOID:0000000003857763

System Description

INFOID:0000000003773265

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.

JPMIA1046GB