Nissan Cube. Manual - part 695

PCS

RELAY CONTROL SYSTEM

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

NOTE:

BCM controls the starter relay.

Component Parts Location

INFOID:0000000009944987

Control relay

Input/output

Transmit unit

Control part

Reference 

page

• Headlamp low relay
• Headlamp high relay

• Low beam request signal
• High beam request signal

BCM (CAN)

• Headlamp low
• Headlamp high

EXL-7

Front fog lamp relay

Front fog light request signal

BCM (CAN)

Front fog lamp

EXL-12

Tail lamp relay

Position light request signal

BCM (CAN)

• Parking  lamp
• Side  marker  lamp
• License plate lamp
• Tail  lamp

EXL-16

Illuminations

INL-11

• Front wiper relay
• Front wiper high relay

Front wiper request signal

BCM (CAN)

Front wiper

WW-6

Front wiper stop position sig-
nal

Front wiper motor

Rear window defogger

Rear window defogger switch 
signal

BCM (CAN)

Rear window defogger

DEF-4

Horn relay

• Theft warning horn request 

signal

• Horn reminder signal

BCM (CAN)

Horn

SEC-21

• Starter relay

NOTE

• Starter control relay

Starter control relay signal

BCM (CAN)

Starter motor

SEC-78

,

SEC-76

Starter relay control signal

TCM

Clutch interlock switch (M/T)

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

Cooling fan speed request sig-
nal

ECM (CAN)

Cooling fan

EC-74

A/C relay

A/C compressor request sig-
nal

ECM (CAN)

A/C compressor
(Magnet clutch)

HAC-59

Ignition relay

Ignition switch ON signal

BCM (CAN)

Ignition relay 

PCS-16

Vehicle speed signal

Combination meter (CAN)

Push-button ignition switch 
signal

Push-button ignition switch

1.

IPDM E/R

A.

Engine room (LH)

JPMIA1389ZZ

PCS-6

< SYSTEM DESCRIPTION >

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

POWER CONTROL SYSTEM

POWER CONTROL SYSTEM

System Diagram

INFOID:0000000009944988

System Description

INFOID:0000000009944989

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"

.

JPMIA0908GB

PCS

SIGNAL BUFFER 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

SIGNAL BUFFER SYSTEM

System Diagram

INFOID:0000000009944990

System Description

INFOID:0000000009944991

• 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-18, "WARNING LAMPS/INDICATOR LAMPS : System Diagram"

.

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

it to ECM via CAN communication. Refer to 

DEF-4, "System Diagram"

.

JPMIA1485GB

PCS-8

< SYSTEM DESCRIPTION >

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

POWER CONSUMPTION CONTROL SYSTEM

POWER CONSUMPTION CONTROL SYSTEM

System Diagram

INFOID:0000000010269397

System Description

INFOID:0000000009944993

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.

JPMIA0731GB