Nissan Murano. Instruction — part 442
AWD SYSTEM
DLN-7
< SYSTEM DESCRIPTION >
[TRANSFER: TY20A]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
AUTO Mode
• Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.
• AWD mode makes possible stable driving possible with no wheel spin, on snowy roads or other slippery sur-
faces.
• On roads which do not require 4-wheel drive, AUTO mode contributes to improved fuel economy by driving
in conditions close to front-wheel drive.
• Sensor inputs determine the vehicle's turning condition, and tight cornering/braking are controlled by distrib-
uting optimum torque to rear wheels.
NOTE:
Light tight-corner braking symptom may occur depending on driving condition in AUTO mode. This is not mal-
function.
LOCK Mode
• Front/rear wheel torque distribution is fixed, ensuring stable driving when climbing slopes.
• Vehicle will switch automatically to AUTO mode if vehicle speed increases. If vehicle speed then decreases,
the vehicle automatically returns to direct 4-wheel driving conditions. The AWD LOCK indicator lamp keeps
illuminating.
• LOCK mode will change to AUTO mode automatically, when the vehicle has been driven at a high speed.
The AWD LOCK indicator lamp turns off.
• LOCK mode will change to AUTO mode automatically, when the ignition switch is turned “OFF”.
NOTE:
• Every time AWD lock switch is pressed, AUTO mode and LOCK mode switch each other.
• If there is a significant difference in pressure or wear between tires, full vehicle performance is not available.
Tire conditions are detected, and LOCK mode may be prohibited, or else speeds at which LOCK mode is
enabled may be restricted.
• Heavy tight-corner braking symptom occurs when vehicle is driven in the following conditions: LOCK mode,
steering wheel is turned fully to either sides, and accelerator pedal is depressed.
CAUTION:
Never switch to LOCK when rotation speed of front and rear wheel differs.
POWER TRANSFER DIAGRAM
OPERATION PRINCIPLE
Electric Controlled Coupling
Combination meter
Transmits conditions of parking brake switch signal via CAN communication to AWD con-
trol unit.
Receives the following signals via CAN communication from AWD control unit.
• AWD warning lamp signal
• AWD LOCK indicator lamp signal
Steering angle sensor
Transmits conditions of steering angle sensor signal via CAN communication to AWD
control unit.
Component parts
Function
SDIA1607E
DLN-8
< SYSTEM DESCRIPTION >
[TRANSFER: TY20A]
AWD SYSTEM
1.
The AWD control unit supplies command current to electric con-
trolled coupling (AWD solenoid).
2.
The control clutch is engaged by electromagnet and torque is
detected in control clutch.
3.
The cam operates in response to control clutch torque and
applies pressure to main clutch.
4.
The main clutch transmits torque to front wheels according to
pressing power.
• Transmission torque to the rear wheels is determined accord-
ing to command current.
Component Parts Location
INFOID:0000000009718075
SDIA2035E
SDIA1844E
1.
AWD LOCK indicator lamp
2.
AWD warning lamp
3.
AWD lock switch
4.
AWD control unit
5.
AWD solenoid (in rear final drive)
A.
Combination meter
B.
Center console (Front side)
C.
Instrument driver lower cover removed
D.
Rear final drive assembly
JPDIE0052ZZ
AWD SYSTEM
DLN-9
< SYSTEM DESCRIPTION >
[TRANSFER: TY20A]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
Component Description
INFOID:0000000009718076
Component parts
Reference/Function
AWD control unit
Wheel sensors
AWD solenoid
Electric controlled coupling
Transmits driving force to rear final drive.
AWD warning lamp
AWD LOCK indicator lamp
AWD lock switch
ABS actuator and electric unit (control unit)
ECM
Combination meter
Steering angle sensor
DLN-10
< SYSTEM DESCRIPTION >
[TRANSFER: TY20A]
DIAGNOSIS SYSTEM (AWD CONTROL UNIT)
DIAGNOSIS SYSTEM (AWD CONTROL UNIT)
CONSULT Function
INFOID:0000000009718077
FUNCTION
CONSULT can display each diagnostic item using the diagnostic test modes as follows.
ECU IDENTIFICATION
AWD control unit part number can be read.
SELF -DIAGNOSTIC RESULT
Before performing the self-diagnosis, start the engine and drive vehicle at 30 km/h (19 MPH) or more for
approximately 1 minute.
Display Item List
.
How to Erase Self-Diagnostic Results
Before erasing DTC memory, start the engine and drive at 30 km/h (19 MPH) or more for approximately 1
minute. Check that ABS warning lamp turns OFF.
NOTE:
When AWD warning lamp is ON with system malfunction of DTC “C1203”, run the vehicle at 30 km/h (19
MPH) or more for a minute and check that ABS warning lamp is turned OFF. Then turn ignition switch OFF,
and start the engine again. Otherwise AWD warning lamp may not turned OFF even if it is normal.
DATA MONITOR
Display Item List
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Diagnostic test mode
Function
ECU Identification
AWD control unit part number can be read.
Self Diagnostic Result
Self-diagnostic results can be read and erased quickly.
Data Monitor
Input/Output data in the AWD control unit can be read.
Active Test
Diagnostic Test Mode in which CONSULT drives some actuators apart from the AWD control unit
and also shifts some parameters in a specified range.
Monitor item (Unit)
Remarks
STOP LAMP SW [On/Off]
Stop lamp switch signal status via CAN communication line is displayed.
ENG SPEED SIG [Run/Stop]
Engine status is displayed.
ETS ACTUATOR [On/Off]
Operating condition of AWD actuator relay (integrated in AWD control unit) is displayed.
4WD WARN LAMP [On/Off]
Control status of AWD warning lamp is displayed.
4WD MODE SW [AUTO/LOCK]
AWD lock switch status is displayed.
4WD MODE MON [AUTO/LOCK]
Control status of AWD is displayed.
DIS-TIRE MONI [mm]
Improper size tire installed condition is displayed.
P BRAKE SW [On/Off]
Parking switch signal status via CAN communication line is displayed.
BATTERY VOLT [V]
Power supply voltage for AWD control unit
THRTL POS SEN [%]
Throttle opening status is displayed.
ETS SOLENOID [A]
Monitored value of current at AWD solenoid
FR RH SENSOR [km/h] or [mph]
Wheel speed calculated by front RH wheel sensor signal is displayed.
FR LH SENSOR [km/h] or [mph]
Wheel speed calculated by front LH wheel sensor signal is displayed.
RR RH SENSOR [km/h] or [mph]
Wheel speed calculated by rear RH wheel sensor signal is displayed.
RR LH SENSOR [km/h] or [mph]
Wheel speed calculated by rear LH wheel sensor signal is displayed.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст