Nissan X-Trail 32. Manual - part 1659

PCS-6

< SYSTEM DESCRIPTION >

[IPDM E/R]

COMPONENT PARTS

Smart FET

INFOID:0000000010741701

Smart FET, that uses MOS field effect transistor, is adopted for each
lamps control.
NOTE:
A MOS field effect transistor is a transistor in which the gate is com-
posed of a metal-oxide-semiconductor (MOS). Field effect transistor
is controlled by voltage, while ordinary transistor is controlled by cur-
rent. Electrode of field effect transistor is called source, drain, or
gate, while electrode of ordinary transistor is called emitter, collector,
or base.

JMMIA1785GB

PCS

SYSTEM

PCS-7

< SYSTEM DESCRIPTION >

[IPDM E/R]

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SYSTEM

RELAY CONTROL SYSTEM

RELAY CONTROL SYSTEM : System Description

INFOID:0000000010741702

SYSTEM DIAGRAM

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.
NOTE:
To prevent to the parts, IPDM E/R integrated relays cannot be removed.

JMMIA1829GB

Control relay

Input/output

Transmit unit

Control part

Reference page

• Front wiper relay
• Front wiper HI/LO relay

Front wiper request signal

BCM (CAN)

Front wiper motor

WW-13

Front wiper stop position sig-
nal

Front wiper motor

PCS-8

< SYSTEM DESCRIPTION >

[IPDM E/R]

SYSTEM

RELAY CONTROL SYSTEM : Fail-safe

INFOID:0000000010741703

FAIL-SAFE CONTROL BY DTC

IPDM E/R performs fail-safe control when any DTC are detected.

Ignition relay

Ignition switch ON signal

BCM (CAN)

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

PCS-55

Vehicle speed signal (Meter)

Combination meter (CAN)

Push-button ignition switch 
signal

Push-button ignition switch

Cooling fan relay 1

Cooling fan speed request 
signal

ECM (CAN)

Cooling fan

EC-57

Headlamp washer relay

Headlamp washer relay

BCM (CAN)

Headlamp washer 
pump

WW-25

Control relay

Input/output

Transmit unit

Control part

Reference page

DTC

CONSULT display description

Fail-safe

B121D

S/L LOCK PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply until the vehicle switches to 
sleep status.

B121A

FR FOG LAMP LH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the front fog lamp LH power 
supply circuit until the front fog lamp ON conditions are no 
longer satisfied.

B1231

DTRL RH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the daytime running light RH 
power supply circuit until the daytime running light ON 
conditions are no longer satisfied.

B1256

FR FOG LAMP RH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the front fog lamp RH power 
supply circuit until the front fog lamp ON conditions are no 
longer satisfied.

B1C00

HEIGHT SENSOR PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Right and left headlamp aiming motors stop at the posi-
tion when DTC is detected.

[CIRC 
SHORT TO 
BATTERY]

B1C01

FR HEIGHT SENSOR SIGNAL

[CIRC 
SHORT TO 
BATTERY]

Right and left headlamp aiming motors stop at the posi-
tion when DTC is detected.

[CIRC 
SHORT TO 
GROUND 
OR OPEN]

[CIRC 
VOLTAGE 
OUT OF 
RANGE]

B1C02

RR HEIGHT SENSOR SIGNAL

[CIRC 
SHORT TO 
BATTERY]

Right and left headlamp aiming motors stop at the posi-
tion when DTC is detected.

[CIRC 
SHORT TO 
GROUND 
OR OPEN]

[CIRC 
VOLTAGE 
OUT OF 
RANGE]

PCS

SYSTEM

PCS-9

< SYSTEM DESCRIPTION >

[IPDM E/R]

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B1C07

AIMING MOTOR DRIVE SIGNAL

[CIRC 
SHORT TO 
GRND]

Right and left headlamp aiming motors stop at the posi-
tion when DTC is detected.

[CIRC 
SHORT TO 
BATTERY]

[SIGNAL 
COMPARE 
FAILURE]

B1C11

FR HEIGHT SENSOR SIGNAL

[SIG 
PRTCTN 
CLCLTN IN-
CRCT]

Right and left headlamp aiming motors stop at the posi-
tion when DTC is detected.

B1C12

RR HEIGHT SENSOR SIGNAL

[SIG 
PRTCTN 
CLCLTN IN-
CRCT]

Right and left headlamp aiming motors stop at the posi-
tion when DTC is detected.

B20CB

DTRL LH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the daytime running light LH 
power supply circuit until the daytime running light ON 
conditions are no longer satisfied.

B20BD

BATTERY CURRENT SENSOR

[CIRC 
SHORT TO 
GRND]

Inhibit stop/start system operation

[CIRC 
SHORT TO 
BATTERY]

[CIRC 
OPEN]

[CMPNENT 
INTERNAL 
MLFNCTN]

B20CE

HL (HI) LH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the headlamp (HI) LH power 
supply circuit until the headlamp (HI) ON conditions are 
no longer satisfied.

B20CF

HL (HI) RH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the headlamp (HI) RH pow-
er supply circuit until the headlamp (HI) ON conditions are 
no longer satisfied.

B20D0

HL (LO) LH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the headlamp (LO) LH pow-
er supply circuit until the headlamp (LO) ON conditions 
are no longer satisfied.

B20D1

HL (LO) RH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the headlamp (LO) RH pow-
er supply circuit until the headlamp (LO) ON conditions 
are no longer satisfied.

B20D2

PARKING LAMP PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the parking lamp (LH/RH) 
power supply circuit until the parking lamp, license plate 
lamp, and tail lamp ON conditions are no longer satisfied.

B20D4

TAIL LAMP LH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the following power supply 
circuits until the parking lamp, license plate lamp, and tail 
lamp ON conditions are no longer satisfied.
• Tail lamp LH (body side)
• Tail lamp LH (back door side)
• License plate lamp LH
• License plate lamp RH

B20D5

TAIL LAMP RH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the following power supply 
circuits until the parking lamp, license plate lamp, and tail 
lamp ON conditions are no longer satisfied.
• Tail lamp RH (body side)
• Tail lamp RH (back door side)

DTC

CONSULT display description

Fail-safe