Nissan Sentra. Manual - part 663

PCS

COMPONENT PARTS

PCS-5

< SYSTEM DESCRIPTION >

[IPDM E/R (WITH I-KEY)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000009755806

1.

IPDM E/R

AWMIA1363ZZ

PCS-6

< SYSTEM DESCRIPTION >

[IPDM E/R (WITH I-KEY)]

SYSTEM

SYSTEM

RELAY CONTROL SYSTEM
RELAY CONTROL SYSTEM : System Diagram

INFOID:0000000009755807

SYSTEM DIAGRAM

AWMIA1508GB

PCS

SYSTEM

PCS-7

< SYSTEM DESCRIPTION >

[IPDM E/R (WITH I-KEY)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

RELAY CONTROL SYSTEM : System Description

INFOID:0000000009755808

DESCRIPTION

IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input sig-

nals 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

Control relay

Input/output

Transmit unit

Control part

Reference page

Fog lamp relay

Fog lamp request signal

BCM (CAN)

Fog lamp (if equipped)

EXL-10

• Headlamp low relay
• Headlamp high relay

• Low beam request signal
• High beam request signal

BCM (CAN)

• Headlamp LO
• Headlamp HI

EXL-8

Tail lamp relay

Position light request signal

BCM (CAN)

• Parking lamp
• License plate lamp
• Tail  lamp
• Accent  lamp
• Illumination system

EXL-11

• Front wiper relay
• Front wiper high relay

Front wiper request signal

BCM (CAN)

Front wiper motor

WW-8

Front wiper stop position signal Front wiper motor

Rear window defogger 
relay

Rear window defogger relay 
control signal

BCM (CAN)

Rear window defogger

DEF-6

Starter control relay

Starter control relay signal

BCM (CAN)

Starter motor

STR-8

Transmission range switch sig-
nal (CVT models)

Transmission range 
switch

Clutch interlock switch signal 
(M/T models)

Clutch interlock switch

• Cooling fan relay-1
• Cooling fan relay-2
• Cooling fan relay-3

Cooling fan speed request sig-
nal

ECM (CAN)

Cooling fan

EC-47

A/C relay

A/C compressor request signal ECM (CAN)

A/C compressor
(Magnet clutch)

HAC-15

 (automatic 

air conditioner)

HAC-122

 (manual air 

conditioner)

ECM relay

ECM relay control signal

ECM (CAN)

ECM

EC-32

Throttle control motor re-
lay

Throttle control motor control 
signal

ECM (CAN)

ECM

EC-430

Fuel pump relay

Fuel pump request signal

ECM (CAN)

Fuel pump

EC-453

Ignition relay-1

Ignition switch ON signal

BCM (CAN)

Each control unit, sen-
sor, actuator and relay 
(Ignition power supply) 

PCS-63

Vehicle speed signal (Meter)

Combination meter 
(CAN)

Push-button ignition switch sig-
nal

Push-button ignition 
switch

PCS-8

< SYSTEM DESCRIPTION >

[IPDM E/R (WITH I-KEY)]

SYSTEM

POWER CONSUMPTION CONTROL SYSTEM : System Diagram

INFOID:0000000009755809

POWER CONSUMPTION CONTROL SYSTEM : System Description

INFOID:0000000009755810

DESCRIPTION

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.

ALCIA0030GB