Nissan Murano Z50 (2003 year). Manual - part 53

 

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Nissan Murano Z50 (2003 year). Manual - part 53

 

 

PREPARATION

BRC-69

[VDC/TCS/ABS]

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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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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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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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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 

5/TYPE 6/TYPE 7/TYPE 8"

BRC-82, "TYPE 9/TYPE10/TYPE 11/TYPE 12/

TYPE 13/TYPE 14/TYPE 15/TYPE 16"

CAN COMMUNICATION

BRC-77

[VDC/TCS/ABS]

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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

Closed throttle position signal

T

Wide open throttle position signal

T

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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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

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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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