Nissan Quest E52. Instruction — part 1256
WT-8
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
System Description
INFOID:0000000009653419
• During driving, the TPMS (Tire Pressure Monitoring System) receives the signal transmitted from tire pres-
sure sensor installed in each wheel. The BCM (Body Control Module) of this system has pressure judgment
and trouble diagnosis functions. When the tire pressure monitoring system detects low inflation pressure or
another unusual symptom, the low tire pressure warning lamps in the combination meter comes on.
• If the tire pressure is less than the specified value, the low tire pressure warning lamp illuminates that the tire
pressure is less than the specified value.
• Activates the TPMS (Tire Pressure Monitoring System) when the vehicle speed is 40 km/h (25 MPH) or
more.
• Added easy fill tire alert function to TPMS (Tire Pressure Monitoring System). Refer to
.
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.
JSEIA0407GB
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
TCM
Mainly transmits the following signals to BCM via CAN communication.
• P range signal
IPDM E/R
Mainly receives the following signals from BCM via CAN communication.
• Horn remainder signal
Condition
Low tire pressure warning lamp
Ignition switch OFF
OFF
Ignition switch ON
(system normal)
Warning lamp turns on for 1second, then turns off.
SYSTEM
WT-9
< SYSTEM DESCRIPTION >
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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
• During the use of the easy fill tire alert function.
HORN CONTROL CONDITION
During the use of easy fill tire alert function.
Circuit Diagram
INFOID:0000000009653420
Easy Fill Tire Alert Function
INFOID:0000000009653421
• This function operates only when the select lever position is in P-range with the ignition switch ON.
CAUTION:
Never start the engine.
NOTE:
The easy fill tire alert function is recommended to use with the ignition switch ON.
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.
Condition
Low tire pressure warning lamp
JSEIA0405GB
WT-10
< SYSTEM DESCRIPTION >
SYSTEM
• This function informs the driver of the satisfaction of the recom-
mended COLD tire pressure.
The hazard warning lamp blinks when reaching the recommended
COLD tire pressure during radio wave reception. After reaching the
recommended COLD tire pressure, the horn sounds once and the
hazard warning lamp stops blinking.
• When tire pressure becomes a value equal to or more than 30 kPa
(0.31 kg/cm
2
, 4 psi) more than the recommended COLD tire pres-
sure, the hazard warning lamp and the horn operates three times.
After deflating the tire and reaching the recommended COLD tire
pressure, the horn sounds only once and the hazard warning lamp
stops blinking.
NOTE:
• After starting to inflate the tire, it takes a few seconds for the easy fill tire alert to function.
• If there is no response for approximately 15 seconds or more after inflating the tires, cancel the use of the
easy fill tire alert function or move the vehicle approximately 1 m (3.2 ft) backward or forward to try again.
The air filler pressure may be weak or out of service area.
JSEIA0214GB
DIAGNOSIS SYSTEM (BCM)
WT-11
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000009978842
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×
: Applicable item
NOTE:
*: For models with automatic air conditioning control system, this diagnosis mode is not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT.
Diagnosis mode
Function Description
Work Support
Changes the setting for each system function.
Self Diagnostic Result
Displays the diagnosis results judged by BCM.
CAN Diag Support Monitor
Monitors the reception status of CAN communication viewed from BCM.
Data Monitor
The BCM input/output signals are displayed.
Active Test
The signals used to activate each device are forcibly supplied from BCM.
Ecu Identification
The BCM part number is displayed.
Configuration
• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.
System
Sub system selection item
Diagnosis mode
Work Support
Data Monitor
Active Test
Door lock
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp control system
INT LAMP
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps
FLASHER
×
×
×
Air conditioning control system
AIR CONDITONER
×
×
*
• Intelligent Key system
• Engine start system
INTELLIGENT KEY
×
×
×
Combination switch
COMB SW
×
Body control system
BCM
×
NVIS
IMMU
×
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Back door open
TRUNK
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
Signal buffer system
SIGNAL BUFFER
×
×
TPMS
AIR PRESSURE MONITOR
×
×
×
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