Nissan Murano Z50 (2003 year). Manual — part 53
PREPARATION
BRC-69
[VDC/TCS/ABS]
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Revision; 2004 April
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PREPARATION
PFP:00002
Commercial Service Tools
AFS001AP
Tool name
Description
1. Flare nut crowfoot
a:10mm (0.39 in) / 12mm (0.47 in)
2. Torque wrench
Removing and installing each brake piping
S-NT360
BRC-70
[VDC/TCS/ABS]
ON-VEHICLE SERVICE
Revision; 2004 April
2003 Murano
ON-VEHICLE SERVICE
PFP:00000
Adjustment of Steering Angle Sensor Neutral Position
AFS001I6
After removing/installing or replacing ABS actuator and electric unit (control unit), steering angle sensor, steer-
ing components, suspension components, or after adjusting wheel alignment, make sure to adjust neutral
position of steering angle sensor before running vehicle.
×
: Required
–: Not required
CAUTION:
To adjust neutral position of steering angle sensor, make sure to use CONSULT-II.
(Adjustment cannot be done without CONSULT-II.)
1.
Stop vehicle with front wheels in straight-ahead position.
2.
Connect CONSULT-II and CONSUL-II CONVERTER to data link
connector on vehicle, and turn ignition switch ON (do not start
engine).
3.
Touch “ABS”, “WORK SUPPORT” and “ST ANGLE SENSOR
ADJUSTMENT” on CONSULT-II screen in this order.
4.
Touch “START”.
CAUTION:
Do not touch steering wheel while adjusting steering angle
sensor.
5.
After approximately 10 seconds, touch “END”. (After approxi-
mately 60 seconds, it ends automatically.)
6.
Turn ignition switch OFF, then turn it ON again.
CAUTION:
Be sure to perform above operation.
7.
Run vehicle with front wheels in straight-ahead position, then
stop.
8.
Select “DATA MONITOR”, “SELECTION FROM MENU”, and “STR ANGLE SIG” on CONSULT-II screen.
Then make sure “STR ANGLE SIG” is within 0
±
2.5 deg. If value is more than specification, repeat steps 3
to 7.
9.
Erase memory of ABS actuator and electric unit (control unit) and ECM.
10. Turn ignition switch to OFF.
Situation
Adjustment of Steering Angle Sensor Neutral Position
Removing/Installing ABS actuator and electric unit (control unit)
×
Removing/Installing steering angle sensor
×
Removing/Installing steering components
×
Removing/Installing suspension components
×
Change tires to new ones
–
Tire rotation
–
Adjusting wheel alignment
×
PBIB1300E
SFIA0371E
ON-VEHICLE SERVICE
BRC-71
[VDC/TCS/ABS]
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Revision; 2004 April
2003 Murano
Calibration of Decel G Sensor
AFS001Z7
After removing/installing or replacing Yaw rate/side/decel G sensor, ABS actuator and electric unit (control
unit) make sure to Calibration of Decel G Sensor before running vehicle.
×
: Required
–: Not required
CAUTION:
To calibrate decel G sensor, make sure to use CONSULT- II (Adjustment cannot be done without CON-
SULT- II)
1.
Stop vehicle with front wheels in straight-ahead position.
CAUTION:
●
Keep all tires inflated to correct pressures. Adjust the tire
pressure to the specified pressure value.
●
See that there is on-load in vehicle other than the driver
(or equivalent weight placed in drivers position).
2.
Connect CONSULT- II to data link connector on vehicle, and
turn ignition switch ON (do not start engine).
3.
Touch “ABS”, “WORK SUPPORT” and “DECEL G SEN CALI-
BRATION” on CONSULT- II screen in this order.
4.
Touch “START”.
5.
After approximately 10 seconds, touch “END”. (After approxi-
mately 60 seconds, it ends automatically.)
6.
Turn ignition switch OFF, then turn it ON again.
CAUTION:
Be sure to carry out above operation.
7.
Run vehicle with front wheels in straight-ahead position, then
stop.
8.
Select “DATA MONITOR”, “SELECTION FROM MENU”, and
“DECEL G SEN” on CONSULT- II screen. Then check that
“DECEL G SEN” is within
±
0.08G. If value is more than specifi-
cation, repeat steps 1 to 5.
9.
Erase memory of ABS actuator and electric unit (control unit) and ECM.
10. Turn ignition switch OFF.
Situation
Calibration of Decel G Sensor
Removing/Installing ABS actuator and electric unit (control unit)
×
Removing/Installing steering components
–
Removing/Installing suspension components
–
Change tires to new ones
–
Tire rotation
–
Adjusting wheel alignment
–
Removing/Installing Yaw rate/side/decel G sensor
×
PBIB1300E
LFIA0171E
BRC-72
[VDC/TCS/ABS]
SYSTEM DESCRIPTION
Revision; 2004 April
2003 Murano
SYSTEM DESCRIPTION
PFP:00000
System Diagram
AFS00210
PFIA0463E
SYSTEM DESCRIPTION
BRC-73
[VDC/TCS/ABS]
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Revision; 2004 April
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System Component Parts
AFS001AR
VDC Function
AFS001AT
●
In addition to the TCS/ABS function, the driver steering amount and brake operation amount are detected
from the steering angle sensor and pressure sensor, and the vehicle's driving status (amount of under
steering / over steering) is determined from information from the yaw rate /side/decel G sensor, wheel
sensor, etc., and this information is used to improve vehicle stability by controlling the braking and engine
power to all four wheels.
●
The SLIP indicator lamp flashes to inform the driver of VDC operation.
●
During VDC operation, the body and brake pedal lightly vibrate and mechanical noises may be heard.
This is normal.
●
The ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp might turn on when the vehicle
is subject to strong shaking or large vibration, such as when the vehicle is on a turn table or a ship while
the engine is running or steep slope such as bank. In this case, restart the engine on a normal road, and if
the ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp turn off, there is no problem.
1.
Sensor rotor (FR)
2.
Wheel sensor (FR)
3.
Wheel sensor (FL)
4.
Sensor rotor (FL)
5.
Brake booster and Master cylinder
6.
ABS actuator and electric unit (con-
trol unit)
7.
Sensor rotor (RR)
8.
Wheel sensor (RR)
9.
Wheel sensor (RL)
10. Sensor rotor (RL)
11.
Combination meter
[Brake warning lamp,
ABS warning lamp,
VDC OFF indicator lamp,
SLIP indictor lamp]
12. VDC OFF Switch
13. Yaw rate/side/decel G sensor
14. Steering Angle sensor
PFIA0419E
BRC-74
[VDC/TCS/ABS]
SYSTEM DESCRIPTION
Revision; 2004 April
2003 Murano
TCS Function
AFS001AU
●
The wheel spin of the drive wheels is detected by the ABS actuator and electric unit (control unit) from the
wheel speed signals from the four wheels, so if wheel spin occurs, the drive wheel right and left brake fluid
pressure control and engine fuel cut are conducted while the throttle value is restricted to reduce the
engine torque and decrease the amount of wheel spin. In addition, the degree the throttle is opened is
controlled to achieve the optimum engine torque.
●
Depending on road circumstances, the driver may have a sluggish feel. This is normal, because the opti-
mum traction has the highest priority under TCS operation.
●
TCS may be activated any time the vehicle suddenly accelerates, depressing accelerator peal fully, sud-
denly downshifts, upshifts, or is driven on a road with a varying surface friction coefficient.
●
During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
ABS Function
AFS001ZQ
●
The Anti-Lock Brake System is a function that detects wheel revolution while braking, and it improves
handling stability during sudden braking by electrically preventing 4 wheel lock. Maneuverability is also
improved for avoiding obstacles.
●
If the electrical system breaks down, then Fail-Safe function is activated, ABS becomes inoperative, and
ABS warning lamp turns on.
●
Electrical System Diagnosis by CONSULT-II is available.
●
During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
●
Just after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may
be heard from engine compartment. This is a normal status of operation check.
●
Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
EBD Function
AFS001ZR
●
Electronic Brake Distributor is a function that detects subtle slippages between front and rear wheels dur-
ing braking, and it improves handling stability by electronically controlling Brake Fluid Pressure which
results in reduced rear wheel slippage.
●
In case of electrical system break down, Fail-Safe function is activated, EBD and ABS becomes inopera-
tive, and ABS warning lamp and brake warning lamp are turned on.
●
Electrical System Diagnosis by CONSULT-II is available.
●
During EBD operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
●
Just after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may
be heard from engine compartment. This is a normal status of operation check.
●
Stopping distance may be longer than that of vehicles without EBD when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
Fail-Safe Function
AFS0020Z
VDC/TCS SYSTEM
In case of Throttle Control System trouble, the VDC OFF indicator lamp and SLIP indicator lamp are turned
on, and the condition of the vehicle is the same as the condition of vehicles without VDC/TCS system. In case
of trouble to the Throttle Control System, the ABS control continues to operate normally without VDC/TCS
control.
CAUTION:
If the Fail-Safe function is activated, then perform the Self Diagnosis for VDC/TCS/ABS control sys-
tem.
ABS, EBD SYSTEM
In case of electrical problems with the ABS, the ABS warning lamp, VDC OFF indicator lamp and SLIP indica-
tor lamp will turn on. In case of electrical problem with the EBD, Brake warning lamp, ABS warning lamp, VDC
OFF indicator lamp and SLIP indicator lamp will turn on. Simultaneously, the VDC/TCS/ABS become one of
the following conditions of the Fail- Safe function.
1.
For ABS trouble, only the EBD is activated and the condition of the vehicle is the same condition of vehi-
cles without TCS/ABS system.
SYSTEM DESCRIPTION
BRC-75
[VDC/TCS/ABS]
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Revision; 2004 April
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2.
For EBD trouble, the EBD and ABS become inoperative, and the condition of the vehicle is the same as
the condition of vehicles without VDC/TCS/ABS, EBD system.
NOTE:
In condition 1 described above, an ABS Self Diagnosis sound may be heard. That is a normal condition
because a self diagnosis for “Key Switch ON” and “the First Starting” are being performed.
Hydraulic Circuit Diagram
AFS00211
PFIA0452E
BRC-76
[VDC/TCS/ABS]
CAN COMMUNICATION
Revision; 2004 April
2003 Murano
CAN COMMUNICATION
PFP:23710
System Description
AFS00216
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Unit For 2WD Models
AFS00217
×
: Applicable
Body type
Wagon
Axle
2WD
Engine
VQ35DE
Transmission
CVT
Brake control
ABS
VDC
Low tire pressure warning
system
×
×
×
×
×
×
×
×
Navigation system
×
×
×
×
×
×
×
×
Automatic drive positioner
×
×
×
×
×
×
×
×
CAN communication unit
ECM
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
TCM
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Low tire pressure warning
control unit
×
×
×
×
×
×
×
×
Display unit
×
×
×
×
×
×
×
×
Display control unit
×
×
×
×
×
×
×
×
Data link connector
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
BCM
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Unified meter and A/C amp.
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Steering angle sensor
×
×
×
×
×
×
×
×
Driver seat control unit
×
×
×
×
×
×
×
×
ABS actuator and electric
unit (control unit)
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
IPDM E/R
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
CAN communication type
BRC-77, "TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE
CAN COMMUNICATION
BRC-77
[VDC/TCS/ABS]
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Revision; 2004 April
2003 Murano
TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE 5/TYPE 6/TYPE 7/TYPE 8
System Diagram
●
Type1
●
Type2
●
Type3
SKIA4902E
SKIA4903E
SKIA4904E
BRC-78
[VDC/TCS/ABS]
CAN COMMUNICATION
Revision; 2004 April
2003 Murano
●
Type4
●
Type5
●
Type6
SKIA4905E
SKIA4906E
SKIA4907E
CAN COMMUNICATION
BRC-79
[VDC/TCS/ABS]
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BRC
Revision; 2004 April
2003 Murano
●
Type7
●
Type8
SKIA4908E
SKIA4909E
BRC-80
[VDC/TCS/ABS]
CAN COMMUNICATION
Revision; 2004 April
2003 Murano
Input/Output Signal Chart
T: Transmit R: Receive
Signals
ECM
TCM
Low
tire
pres-
sure
warn-
ing
control
unit
Dis-
play
unit
Dis-
play
control
unit
BCM
Uni-
fied
meter
and A/
C amp.
Driver
seat
control
unit
ABS
actua-
tor and
elec-
tric unit
(con-
trol
unit)
IPDM
E/R
Engine speed signal
T
R
R
R
R
Engine status signal
T
R
Engine coolant temperature signal
T
R
CVT position indicator signal
T
R
Second position signal
R
T
Second position indicator signal
T
R
Engine and CVT integrated control
signal
T
R
R
T
Accelerator pedal position signal
T
R
Closed throttle position signal
T
R
Wide open throttle position signal
T
R
Key switch signal
T
R
Ignition switch signal
T
R
R
P range signal
T
R
Stop lamp switch signal
R
T
Fuel consumption monitor signal
T
R
CVT self-diagnosis signal
R
T
ABS operation signal
R
T
Air conditioner switch signal
R
T
A/C compressor request signal
T
R
A/C compressor feedback signal
T
R
Blower fan motor switch signal
R
T
A/C control signal
T
T
R
R
R
T
Cooling fan speed request signal
T
R
Position lights request signal
T
R
R
Low beam request signal
T
R
Low beam status signal
R
T
High beam request signal
T
R
R
High beam status signal
R
T
Front fog lights request signal
T
R
Vehicle speed signal
R
R
T
R
R
R
R
T
R
Sleep request 1 signal
T
R
Sleep request 2 signal
T
R
Door switch signal
R
T
R
R
T
R
R
R
Turn indicator signal
T
R
CAN COMMUNICATION
BRC-81
[VDC/TCS/ABS]
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Revision; 2004 April
2003 Murano
Key fob ID signal
T
R
Key fob door unlock signal
T
R
Seat belt buckle switch signal
R
T
Oil pressure switch signal
R
T
T
R
Buzzer output signal
T
R
Fuel level sensor signal
R
T
Fuel level low warning signal
R
R
T
Malfunction indicator lamp signal
T
R
ASCD SET lamp signal
T
R
ASCD CRUISE lamp signal
T
R
Input shaft revolution signal
R
T
Output shaft revolution signal
R
T
Front wiper request signal
T
R
Front wiper stop position signal
R
T
Rear window defogger switch signal
T
R
Rear window defogger control signal
R
R
R
T
Hood switch signal
R
T
Theft warning horn request signal
T
R
Horn chirp signal
T
R
Tire pressure signal
T
R
Tire pressure data signal
T
R
R
ABS warning lamp signal
R
T
Brake warning lamp signal
R
T
System setting signal
T
T
R
Parking brake switch signal
R
T
Signals
ECM
TCM
Low
tire
pres-
sure
warn-
ing
control
unit
Dis-
play
unit
Dis-
play
control
unit
BCM
Uni-
fied
meter
and A/
C amp.
Driver
seat
control
unit
ABS
actua-
tor and
elec-
tric unit
(con-
trol
unit)
IPDM
E/R
BRC-82
[VDC/TCS/ABS]
CAN COMMUNICATION
Revision; 2004 April
2003 Murano
TYPE 9/TYPE10/TYPE 11/TYPE 12/TYPE 13/TYPE 14/TYPE 15/TYPE 16
System Diagram
●
Type9
●
Type10
●
Type11
SKIA4910E
SKIA4911E
SKIA4912E
CAN COMMUNICATION
BRC-83
[VDC/TCS/ABS]
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BRC
Revision; 2004 April
2003 Murano
●
Type12
●
Type13
●
Type14
SKIA4913E
SKIA4914E
SKIA4915E
BRC-84
[VDC/TCS/ABS]
CAN COMMUNICATION
Revision; 2004 April
2003 Murano
●
Type15
●
Type16
SKIA4916E
SKIA4917E
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