Nissan Leaf. Manual — part 1282
COMPONENT PARTS
WT-7
< SYSTEM DESCRIPTION >
C
D
F
G
H
I
J
K
L
M
A
B
WT
N
O
P
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location
INFOID:0000000010120173
ALEIA0191ZZ
A. View with instrument panel removed B. View with tire removed
No.
Component parts
Function
1.
BCM
• Refer to
BCS-5, "BODY CONTROL SYSTEM : Component Parts
for detailed installation location.
2.
Low tire pressure warning lamp
(In combination meter)
.
Information display
(In combination meter)
3.
Remote keyless entry receiver
WT-8, "Remote Keyless Entry Receiver"
.
4.
Tire pressure sensor
.
WT-8
< SYSTEM DESCRIPTION >
COMPONENT PARTS
BCM
INFOID:0000000010120174
• The BCM (1) reads the air pressure signal received by the remote
keyless entry receiver, controls the low tire pressure warning lamp,
hazard warning lamp, and horn operation. It also has a judgment
function to detect a system malfunction.
• Controls Easy Fill tire alert function. Refer to
.
Tire Pressure Sensor
INFOID:0000000010120175
The tire pressure sensor (1) integrated with a valve is installed on a
wheel (2), and transmits a detected air pressure signal by radio
wave.
Remote Keyless Entry Receiver
INFOID:0000000010120176
• The remote keyless entry receiver receives the air pressure signal
transmitted by the tire pressure sensor in each wheel.
Information Display
INFOID:0000000010120177
The vehicle information display (1) is shown when a low tire pres-
sure warning lamp signal is transmitted from BCM to combination
meter via CAN communication.
JSEIA0461ZZ
: Outside
JPEIC0013ZZ
JMKIA8647ZZ
JSEIA0462ZZ
COMPONENT PARTS
WT-9
< SYSTEM DESCRIPTION >
C
D
F
G
H
I
J
K
L
M
A
B
WT
N
O
P
Condition
Vehicle information display
Power switch OFF
Not indicated
Power switch ON
Low tire pressure warning lamp remains ON after blinking for one
minute. [Tire Pressure Monitoring System (TPMS) malfunction.]
Not indicated
Power switch ON
Low tire pressure warning lamp remains ON. (low tire pressure)
Indicated
WT-10
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
System Description
INFOID:0000000010120178
When the vehicle has reached a speed of 40 km/h (25 MPH) or greater, the BCM receives a signal transmitted
from the tire pressure sensors/transmitters installed in each wheel. If the BCM detects low inflation pressure or
a system malfunction, it sends a signal to the combination meter via CAN communication to illuminate the low
tire pressure warning lamp. Refer to the Owner’s Manual for additional information.
The tire pressure monitoring system (TPMS) has Easy Fill tire alert function to aid in tire inflation. Refer to
11, "Easy Fill Tire Alert Function"
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table:
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.
HAZARD WARNING LAMP INDICATION CONDITION
The hazard warning lamp blinks under the following conditions:
ALEIA0192GB
Component parts
Signal item
Combination meter
Mainly receives the following signals from BCM via CAN communication:
• Low tire pressure warning lamp signal
• TPMS malfunction warning lamp signal
ABS actuator and electric unit (con-
trol unit)
Mainly transmits the following signals to BCM via CAN communication:
• Vehicle speed signal (ABS)
VCM (Vehicle Control Module)
Mainly transmits the following signals to BCM via CAN communication:
• Shift position signal (P range signal)
IPDM E/R
Mainly transmits the following signals to BCM via CAN communication:
• Horn reminder signal
Condition
Low tire pressure warning lamp
Power switch OFF
OFF
Power switch ON
(System normal)
Warning lamp turns on for 1second, then turns off.
Low tire pressure
ON
Tire pressure sensor ID not registered in BCM
Tire pressure monitoring system malfunction
(Other diagnostic item)
Warning lamp blinks 1 min, then turns on.
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