Nissan GT-R. Manual - part 231

PCS

RELAY CONTROL SYSTEM

PCS-5

< SYSTEM DESCRIPTION >

[IPDM E/R]

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1.

IPDM E/R

A.

Engine room dash panel (RH)

PCS-6

< SYSTEM DESCRIPTION >

[IPDM E/R]

SIGNAL BUFFER SYSTEM

SIGNAL BUFFER SYSTEM

System Diagram

INFOID:0000000009163846

System Description

INFOID:0000000009163847

• 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-18, "Description"

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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-3, "System Diagram"

.

NNMIA0050GB

PCS

POWER CONSUMPTION CONTROL SYSTEM

PCS-7

< SYSTEM DESCRIPTION >

[IPDM E/R]

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POWER CONSUMPTION CONTROL SYSTEM

System Diagram

INFOID:0000000009163848

System Description

INFOID:0000000009163849

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
- Hood switch status is kept 50 ms or less.
- 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
- The hood switch status changes.
- An output request is received from a control unit via CAN communication.

JSMIA0050GB

PCS-8

< SYSTEM DESCRIPTION >

[IPDM E/R]

POWER CONSUMPTION CONTROL SYSTEM

Component Parts Location

INFOID:0000000009163850

1.

Combination meter

2.

BCM

3.

IPDM E/R

A.

Dash side lower (passenger side)

B.

Engine room dash panel (RH)

JPMIA1144ZZ