Nissan X-Trail 32. Manual - part 2209

COMPONENT PARTS

WT-9

< SYSTEM DESCRIPTION >

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BCM

INFOID:0000000010715057

• Tire pressure receiver is integrated in BCM 

.

• The tire pressure receiver receives the tire pressure and tire tem-

perature signal transmitted by the tire pressure sensor in each
wheel.

• The BCM reads the tire pressure and tire temperature signal

received by tire pressure receiver, and controls the low tire pres-
sure warning lamp operations. It also has a judgment function to
detect a system malfunction.

Tire Pressure Sensor

INFOID:0000000010715058

The tire pressure sensor 

 integrated with the valve is installed in

each wheel 

, and transmits the detected tire pressure and tire tem-

perature signal in the form of the radio wave. The radio signal is
received by the BCM (tire pressure receiver).

No.

Component parts

Function

Rear wheel sensor (RH)

Location of wheel is specified due to the synchronism of wheel sensor position and 
tire pressure sensor position.

Combination meter

Mainly receives the following signals from BCM via CAN communication.
• Low tire pressure warning lamp signal
• Low tire pressure wheel location signal
• TPMS malfunction warning lamp signal
Mainly transmits the following signals to BCM via CAN communication.
• TPMS reset signal

Front wheel sensor (RH)

Location of wheel is specified due to the synchronism of wheel sensor position and 
tire pressure sensor position.

ABS actuator and electric unit (control unit)

Mainly transmits the following signals to BCM via CAN communication.
• Vehicle speed signal (ABS)

Front wheel sensor (LH)

Location of wheel is specified due to the synchronism of wheel sensor position and 
tire pressure sensor position.

Rear wheel sensor (LH)

Location of wheel is specified due to the synchronism of wheel sensor position and 
tire pressure sensor position.

Tire pressure sensor

WT-9, "Tire Pressure Sensor"

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BCM

WT-9, "BCM"

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JSEIA0890ZZ

: Outside

JSEIA0747ZZ

WT-10

< SYSTEM DESCRIPTION >

SYSTEM

SYSTEM

System Description

INFOID:0000000010715059

• During driving, the TPMS (Tire Pressure Monitoring System) receives the signal transmitted from tire pres-

sure sensor installed in each wheel. The BCM of this system has pressure judgment and trouble diagnosis
functions. When the TPMS (Tire Pressure Monitoring System) detects low inflation pressure or another
unusual symptom, the low tire pressure warning lamps in the combination meter comes on.

• Tire pressure varies as per the change in tire temperature. There-

fore, warning tire pressure value is varied as per the change in tire
temperature. TPMS reset operation is required for recording basic
temperature and tire pressure at the time of adjusting tire pressure.

• If the tire pressure is less than the warning tire pressure value, the

low tire pressure warning lamp illuminates.

• Location of wheel is specified due to the synchronism of wheel sensor position and tire pressure sensor

position.

• Activates the TPMS (Tire Pressure Monitoring System) when the vehicle speed is 40 km/h (25 MPH) or

more.

SYSTEM DIAGRAM

INPUT/OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table.

JMEIA0240GB

JSEIA0866GB

SYSTEM

WT-11

< SYSTEM DESCRIPTION >

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LOW TIRE PRESSURE WARNING LAMP INDICATION CONDITION

Uses CAN communication from the BCM to illuminate the low tire pressure warning lamp on the combination
meter.

TPMS RESET CONDITION

TPMS reset under the following conditions.
• Adjust tire pressure.
• Replace tire or road wheel.
• After performing tire rotation.
TPMS reset operation: Refer to 

WT-14, "TPMS reset operation"

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HAZARD WARNING LAMP INDICATION CONDITION

The hazard warning lamp blinks under the following conditions.
• When ID registration is completed. Refer to 

WT-30, "Work Procedure"

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Component parts

Signal item

BCM 

Mainly transmits the following signals to combination meter via CAN communication.
• Low tire pressure warning lamp signal
• Low tire pressure wheel location signal
• TPMS malfunction warning lamp signal
Mainly receives the following signals from combination meter via CAN communication.
• TPMS reset signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN 
communication.
• Vehicle speed signal (ABS)

Combination meter

Mainly receives the following signals from BCM via CAN communication.
• Low tire pressure warning lamp signal
• Low tire pressure wheel location signal
• TPMS malfunction warning lamp signal
Mainly transmits the following signals to BCM via CAN communication.
• TPMS reset signal

ABS actuator and electric unit (con-
trol unit)

Mainly transmits the following signals to BCM via CAN communication.
• Vehicle speed signal (ABS)

Condition

Low tire pressure warning lamp

Ignition switch OFF

OFF

Ignition switch ON
(system normal)

Warning lamp turns ON for 1 second, then turns OFF.

Low tire pressure

ON

Configuration not performed in tire pressure 
monitoring system

Warning lamp blinks 1 minute, then turns ON.

Tire pressure sensor ID not registered in BCM

Tire pressure monitoring system malfunction
(Other diagnostic item)

WT-12

< SYSTEM DESCRIPTION >

SYSTEM

Circuit Diagram

INFOID:0000000010715060

WARNING/INDICATOR/CHIME LIST

WARNING/INDICATOR/CHIME LIST : Warning Lamp/Indicator Lamp

INFOID:0000000010715061

INFORMATION DISPLAY (COMBINATION METER)

INFORMATION DISPLAY (COMBINATION METER) : Low Tire Pressure Location In-
dicator

INFOID:0000000010715062

The low tire pressure location indicator is displayed in the information display of combination meter with the
low tire pressure warning lamp and warning message when following conditions;
• Tire pressure is low.
• Tire goes flat.

JSEIA0912GB

Name

Design

Layout/Function

Low tire pressure warn-
ing lamp

For layout, refer to 

MWI-10, "METER SYSTEM : Design"

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For function, refer to 

MWI-45, "WARNING LAMPS/INDICATOR LAMPS : Low Tire Pressure 

Warning Lamp"

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