Nissan X-Trail 32. Instruction — 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
.
BCM
.
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
HAZARD WARNING LAMP INDICATION CONDITION
The hazard warning lamp blinks under the following conditions.
• When ID registration is completed. Refer to
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
MWI-10, "METER SYSTEM : Design"
For function, refer to
MWI-45, "WARNING LAMPS/INDICATOR LAMPS : Low Tire Pressure
.
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