Nissan March K13. Manual - part 487

 

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Nissan March K13. Manual - part 487

 

 

PCS-30

< SYSTEM DESCRIPTION >

[IPDM E/R (WITHOUT I-KEY)]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000005994060

1.

IPDM E/R

A.

Engine room

JMMIA0356ZZ

PCS

SYSTEM

PCS-31

< SYSTEM DESCRIPTION >

[IPDM E/R (WITHOUT I-KEY)]

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SYSTEM

RELAY CONTROL SYSTEM

RELAY CONTROL SYSTEM : System Diagram

INFOID:0000000005914140

RELAY CONTROL SYSTEM : System Description

INFOID:0000000005914141

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.

JMMIA0353GB

PCS-32

< SYSTEM DESCRIPTION >

[IPDM E/R (WITHOUT I-KEY)]

SYSTEM

RELAY CONTROL SYSTEM : Fail-Safe

INFOID:0000000005984315

CAN COMMUNICATION CONTROL

When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN
communication recovers normally, it also returns to normal control.

If No CAN Communication Is Available With ECM

If No CAN Communication Is Available With BCM

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

Tail lamp relay

Position light request signal

BCM (CAN)

• Parking  lamp
• License plate lamp
• Tail lamp

EXL-9

Illuminations

INL-8

• Front wiper relay
• Front wiper high relay

Front wiper request signal

BCM (CAN)

Front wiper motor

WW-6

Front wiper stop position signal

Front wiper motor

Horn relay

Theft warning horn request signal

BCM (CAN)

Horn

DLK-155

(with panic 

alarm func-

tion)

Starter control relay

Starter control relay signal

BCM (CAN)

Starter motor

Cooling fan relay

Cooling fan speed request signal

ECM (CAN)

Cooling fan

EC-38

[HR12DE 
(TYPE 1)]

EC-343

[HR12DE 
(TYPE 2)]

A/C relay

A/C compressor request signal

ECM (CAN)

A/C compressor
(Magnet clutch)

HAC-13

Ignition relay

Ignition switch ON signal

Ignition switch

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

PCS-49

Control part

Fail-safe operation

Cooling fan

• The cooling fan relay turn ON when the ignition switch is turned ON (Cooling fan HI 

operation)

• The cooling fan relay turn OFF when the ignition switch is turned OFF

A/C compressor

A/C relay OFF

Alternator

Outputs the power generation command signal (PWM signal) 0%

Control part

Fail-safe operation

Headlamp

• Turns ON the headlamp low relay when the ignition switch is turned ON
• Turns OFF the headlamp low relay when the ignition switch is turned OFF
• Headlamp high relay OFF

• Parking  lamps
• License plate lamps
• Illuminations
• Tail lamps

• Turns ON the tail lamp relay when the ignition switch is turned ON
• Turns OFF the tail lamp relay when the ignition switch is turned OFF

PCS

SYSTEM

PCS-33

< SYSTEM DESCRIPTION >

[IPDM E/R (WITHOUT I-KEY)]

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IGNITION RELAY MALFUNCTION DETECTION FUNCTION

• IPDM E/R monitors the voltage at the contact circuit of the ignition relay inside and ignition switch status

from BCM via CAN communication. 

• IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the ignition

switch status from BCM via CAN communication.

• If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to

alert the user to the ignition relay malfunction when the ignition switch is turned OFF.

FRONT WIPER PROTECTION FUNCTION

IPDM E/R detects front wiper stop position by a front wiper stop position signal.
When a front wiper stop position signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 seconds activation and 20 seconds stop.

NOTE:
This operation status can be confirmed on the IPDM E/R “Data Monitor” that displays “BLOCK” for the item
“WIP PROT” while the wiper is stopped.

POWER CONTROL SYSTEM

POWER CONTROL SYSTEM : System Diagram

INFOID:0000000006036747

POWER CONTROL SYSTEM : System Description

INFOID:0000000006036748

ALTERNATOR CONTROL

Front wiper motor

• The status just before activation of fail-safe control is maintained until the ignition 

switch is turned OFF while the front wiper is operating at LO or HI speed.

• The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe 

control is activated while the front wiper is set in the INT mode and the front wiper mo-
tor is operating.

• Returns automatically wiper to stop position when ignition switch is turned ON if fail-

safe control is activated while front wiper motor is operated and wiper stop in the other 
position than stop position.

Horn

Horn OFF

Control part

Fail-safe operation

Voltage judgment

IPDM E/R judgment

Operation

Ignition relay contact 

side

Ignition switch status 

from BCM

ON

ON

Ignition relay ON normal

OFF

OFF

Ignition relay OFF normal

ON

OFF

Ignition relay ON stuck

• Detects DTC “B2098: IGN RELAY ON”
• Turns ON the tail lamp relay for 10 minutes

OFF

ON

Ignition relay OFF stuck

Detects DTC “B2099: IGN RELAY OFF”

Ignition switch

Front wiper switch

Front wiper stop position signal

ON

OFF

The front wiper stop position signal (stop position) cannot be input for 10 seconds.

ON

The front wiper stop position signal does not change for 10 seconds.

JPMIA0908GB

 

 

 

 

 

 

 

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