Nissan Altima HL32 Hybrid. Manual - part 842

PCS

RELAY CONTROL SYSTEM

PCS-9

< FUNCTION DIAGNOSIS >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

1.

IPDM E/R E16, E17, E18, E200, 
E201, F10

PCS-10

< FUNCTION DIAGNOSIS >

[IPDM E/R]

POWER CONTROL SYSTEM

POWER CONTROL SYSTEM

System Diagram

INFOID:0000000004219101

System Description

INFOID:0000000004219102

COOLING FAN CONTROL

IPDM E/R controls cooling fans according to the status of the cooling fan speed request signal received from

ECM via CAN communication. Refer to 

EC-382, "Description"

.

ALMIA0111GB

PCS

SIGNAL BUFFER SYSTEM

PCS-11

< FUNCTION DIAGNOSIS >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

SIGNAL BUFFER SYSTEM

System Diagram

INFOID:0000000004219103

System Description

INFOID:0000000004219104

• 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 

PCS-11, "System Description"

.

• IPDM E/R receives the rear window defogger status signal from BCM via CAN communication and transmits

it to ECM via CAN communication. Refer to 

PCS-11, "System Description"

.

ALCIA0029GB

PCS-12

< FUNCTION DIAGNOSIS >

[IPDM E/R]

POWER CONSUMPTION CONTROL SYSTEM

POWER CONSUMPTION CONTROL SYSTEM

System Diagram

INFOID:0000000004219105

System Description

INFOID:0000000004219106

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.

- 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.

ALCIA0030GB