Nissan Murano Z50 (2003 year). Manual — part 283
WT-54
SERVICE DATA
Revision; 2004 April
2003 Murano
SERVICE DATA
PFP:00030
Road Wheel
AES000I4
Tire
AES000I5
Unit: kPa (kg/cm
2
, psi)
Tightening Torque
AES000I6
Kind of wheel
Aluminum
Steel (for emergency use)
Deflection limit
Lateral deflection
Less than 0.3 mm
(0.012 in)
Less than 1.0mm
(0.039 in)
Vertical deflection
Less than 0.3mm
(0.012 in)
Less than 1.2mm
(0.047in)
Allowable quantity of
residual unbalance
Dynamic
(At rim flange)
Less than 10g (0.35oz) (per side)
Static (At rim flange)
Less than 20g (0.70oz)
Tire size
Air pressure
Front wheel
Rear wheel
P235/65R18 104T
230 (2.3, 33)
230 (2.3, 33)
T165/90D18 107M
420 (4.2, 60)
420 (4.2, 60)
Wheel nut
98.1 - 127 N·m (10 - 12 kg-m, 73 - 93 ft-lb)
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WIPER, WASHER & HORN
K ELECTRICAL
CONTENTS
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SECTION
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WIPER, WASHER & HORN
PRECAUTION . . . . . . . . . . . . . . . 3
FRONT WIPER AND WASHER SYSTEM . . . . .. 4
CAN Communication System Description . . . . 9
CAN Communication Unit For 2WD Models . . . 9
CAN Communication Unit For AWD Models . . .. 21
CHECK POWER SUPPLY AND GROUND CIR-
CUIT . . . . . . . . . . . . . . . . . 37
CONSULT-II Functions . . . . . . . . . . ... 37
Removal and Installation of Front Wiper Motor and
Linkage . . . . . . . . . . . . . . . . ... 47
REMOVAL . . . . . . . . . . . . . . ... 47
INSTALLATION . . . . . . . . . . . . ... 48
Disassembly and Assembly of Front Wiper Motor
and Linkage . . . . . . . . . . . . . . . 48
DISASSEMBLY . . . . . . . . . . . . ... 48
ASSEMBLY . . . . . . . . . . . . . . . 48
INSTALLATION . . . . . . . . . . . . ... 50
Inspection for Washer Nozzle . . . . . . . . . 50
CHECK VALVE . . . . . . . . . . . . . 50
Removal and Installation of Front Wiper and Washer
Switch . . . . . . . . . . . . . . . . . . 51
REMOVAL . . . . . . . . . . . . . . ... 51
INSTALLATION . . . . . . . . . . . . ... 51
Removal and Installation of Washer Tank . . . .. 51
REMOVAL . . . . . . . . . . . . . . ... 51
INSTALLATION . . . . . . . . . . . . ... 51
Removal and Installation of Washer Pump . . . . 52
REMOVAL . . . . . . . . . . . . . . ... 52
INSTALLATION . . . . . . . . . . . . ... 52
REAR WIPER AND WASHER SYSTEM . . . . .. 53
Components Parts and Harness Connector Loca-
tion . . . . . . . . . . . . . . . . . . .. 53
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System Description . . . . . . . . . . . . . 53
CHECK POWER SUPPLY AND GROUND CIR-
CUIT . . . . . . . . . . . . . . . . . 57
CONSULT-II Functions . . . . . . . . . . ... 59
Removal and Installation of Rear Wiper Motor . ... 66
REMOVAL . . . . . . . . . . . . . . ... 66
INSTALLATION . . . . . . . . . . . . . 66
Removal and Installation of Rear Wiper Blade . ...67
REMOVAL . . . . . . . . . . . . . . . 67
INSTALLATION . . . . . . . . . . . . . 68
POWER SOCKET . . . . . . . . . . . . . .71
REMOVAL . . . . . . . . . . . . . . . 72
INSTALLATION . . . . . . . . . . . . . 72
Removal and Installation of Luggage Room Power
Socket . . . . . . . . . . . . . . . . . .72
REMOVAL . . . . . . . . . . . . . . . 72
INSTALLATION . . . . . . . . . . . . . 72
Removal and Installation of Console Power Socket ...72
HORN . . . . . . . . . . . . . . . . . . 73
Wiring Diagram — HORN — . . . . . . . . ..73
Removal and Installation . . . . . . . . . . .74
REMOVAL . . . . . . . . . . . . . . . 74
INSTALLATION . . . . . . . . . . . . . 74
PRECAUTION
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PRECAUTION
PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS004MP
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
●
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
●
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
●
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Wiring Diagrams and Trouble Diagnosis
AKS004MR
When You Read Wiring Diagrams, Refer to the Following:
●
Refer to
GI-14, "How to Read Wiring Diagrams"
●
Refer to
PG-3, "POWER SUPPLY ROUTING CIRCUIT"
for power distribution circuit.
When You Perform Trouble Diagnosis, Refer to the Following:
●
Refer to
GI-10, "How to Follow Trouble Diagnoses"
.
●
Refer to
GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident"
.
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FRONT WIPER AND WASHER SYSTEM
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FRONT WIPER AND WASHER SYSTEM
PFP:28810
Components Parts and Harness Connector Location
AKS004MS
System Description
AKS004MT
●
All front wiper relays (HI, LO) are included in IPDM E/R.
●
Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input termi-
nals. Terminal combination status is read by BCM (body control module) when switch is turned ON.
●
BCM (body control module) controls front wiper LO, HI, and INT (intermittent) operation.
●
IPDM E/R (intelligent power distribution module engine room) operates wiper motor according to CAN
communication signals from BCM (body control module).
Power is supplied at all times
●
through 50 A fusible link (letter F, located in fusible link block)
●
to BCM (body control module) terminal 7
●
through 30 A fuse [No. 74, located in IPDM E/R (intelligent power distribution module engine room)]
●
to front wiper relay [built in IPDM E/R (intelligent power distribution module engine room)]
●
through 15 A fuse [No. 73, located in IPDM E/R (intelligent power distribution module engine room)]
●
to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine
room)].
When the ignition switch ON or START position, power is supplied
●
through 10 A fuse [No. 1, located in fuse block (J/B)]
●
to BCM (body control module) terminal 35
●
through 10 A fuse [No. 80, located in IPDM E/R (intelligent power distribution module engine room)]
●
to front wiper relay [built in IPDM E/R (intelligent power distribution module engine room)] and
●
to front wiper high relay [built in IPDM E/R (intelligent power distribution module engine room)]
●
to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]
●
through 10 A fuse [No. 87, located in IPDM E/R (intelligent power distribution module engine room)]
SKIA4579E
FRONT WIPER AND WASHER SYSTEM
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through IPDM E/R (intelligent power distribution module engine room) terminal 18
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to combination switch terminal 14.
Ground is supplied
●
to BCM (body control module) terminal 8
●
through grounds E13, E26 and E28
●
to IPDM E/R (intelligent power distribution module engine room) terminals 14 and 45
●
through grounds E13, E26 and E28
●
to combination switch (wiper switch) terminal 12
●
through grounds M14 and M78.
LOW SPEED WIPER OPERATION
When front wiper switch is in LO position, BCM detects the LO position of the wiper switch by BCM wiper
switch reading function.
BCM sent front wiper request signal (LO) to IPDM E/R by CAN communication line
●
from BCM terminals 70 and 71
●
to IPDM E/R terminals 48 and 49.
When IPDM E/R receives front wiper request signal (LO), it turns ON front wiper relay (built in IPDM E/R),
power is supplied
●
to front wiper motor terminal 3
●
through IPDM E/R terminal 31 and front wiper high relay and front wiper relay.
Ground is supplied
●
to front wiper motor terminal 1
●
through grounds E13, E26 and E28.
with power and ground is supplied, the front wiper motor operates at low speed.
HI SPEED WIPER OPERATION
When front wiper switch is in HI position, BCM detects the HI position of the wiper switch by BCM wiper switch
reading function.
BCM sent front wiper request signal (HI) to IPDM E/R by CAN communication line
●
from BCM terminals 70 and 71
●
to IPDM E/R terminals 48 and 49.
When IPDM E/R receives front wiper request signal (HI), it turns ON front wiper relay and front wiper HI relay
(built in IPDM E/R), power is supplied
●
to front wiper motor terminal 2
●
through IPDM E/R terminal 30 and front wiper high relay and front wiper relay.
Ground is supplied
●
to front wiper motor terminal 1
●
through grounds E13, E26 and E28.
with power and ground is supplied, the front wiper motor operates at high speed.
INTERMITTENT OPERATION
The front wiper motor operates the wiper arms one time at low speed at a set interval of wiper volume switch
and vehicle speeds, this feature is controlled by the BCM and IPDM E/R.
When front wiper switch is in INT position BCM detects INT position of the wiper switch by BCM wiper switch
reading function. BCM performs the following operations
●
When BCM detects ON/OFF status of intermittent operation dial positions 1, 2, and 3 it determines wiper
dial position status. Refer to
WW-9, "Wiper Dial Position Setting"
●
BCM calculates operation interval from wiper dial position and vehicle speed signal received from unified
meter and A/C amp with CAN communications.
●
BCM sends front wiper request signal (INT) to IPDM E/R at calculated operation interval.
●
When IPDM E/R receives front wiper request signal (INT), it turns ON internal front wiper relay. It then
sends auto stop signal to BCM, and conducts intermittent front wiper motor operation.
With power is supplied and ground circuit is routed, front wiper operates at intermittent.
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FRONT WIPER AND WASHER SYSTEM
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AUTO STOP OPERATION
With wiper switch turned OFF, wiper motor will continue to operate until wiper arms reach windshield base.
When wiper arms are not located at base of windshield with wiper switch OFF, power is provided
●
from IPDM E/R terminal 31
●
to front wiper motor terminal 3, in order to continue wiper motor operation at low speed.
When wiper arms reach base of windshield, front wiper motor terminals 1 and 4 are connected,
and ground is supplied
●
to IPDM E/R terminal 38
●
through front wiper motor terminal 4
●
through front wiper motor terminal 1
●
through grounds E13, E26 and E28.
Then the IPDM E/R sends auto stop operation signal to BCM with CAN communication line.
When BCM receives auto stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN commu-
nication line.
IPDM E/R stops wiper motor. Wiper motor will then stop wiper arms at the STOP position.
WASHER OPERATION
When wiper switch is in front wiper washer position, BCM detects front wiper washer signal by BCM wiper
switch reading function (Refer to
WW-7, "BCM WIPER SWITCH READING FUNCTION"
), combination switch
(wiper switch) ground is supplied
●
through combination switch (wiper switch) terminal 13
●
to front and rear washer motor terminal 1
●
to front and rear washer motor terminal 2
●
through combination switch (wiper switch) terminal 11
●
to combination switch terminal 12
●
through grounds M14 and M78.
With ground is supplied, front and rear washer motor is operated.
When BCM detects that front and rear washer motor has operated for 0.4 seconds or linger, BCM operates
front wiper motor for low speed.
When BCM detects washer switch is OFF, low speed operation cycles approximately 3 times and stops.
MIST OPERATION
When the wiper switch is turned to the mist position, wiper low speed operation cycles once and then stops.
For additional information about wiper operation under this condition. Refer to
.
If the switch is held in the mist position, low speed operation continues.
FAIL-SAFE FUNCTION
IPDM E/R includes a fail-safe function to prevent malfunction of electrical components controlled by CAN com-
munications in CAN communications occurs.
When fail-safe status is initiated, IPDM E/R remains in steady unit signals are received.
IPDM E/R maintains the condition of which before fail-safe starts until ignition switch is turned on.
After ignition switch is turned off and turned on again, if wipers stop at the different position, fail-safe returns
the wipers automatically to the proper position and then stops.
FRONT WIPER AND WASHER SYSTEM
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BCM WIPER SWITCH READING FUNCTION
BCM reads combination switch (wiper switch) status, and controls front wipers based on the results.
BCM is a combination of 5 output terminals (OUTPUT 1 - 5) and 5 input terminals (INPUT 1 - 5). It reads 20
types of switch data and 5 types of diagnosis data.
Operation Description
BCM continuously outputs power voltage from input terminals (INPUT 1 - 5). At this time, output terminals
(OUTPUT 1 - 5) operate transistors in sequence and carry current. If any switch (or switches) becomes ON at
this time, the input terminal corresponding to that switch detects current flowing, and BCM determines that the
switch is ON.
Table of BCM - COMBINATION SWITCH OPERATIONS
BCM reads operation status of combination switch using combinations shown in table below.
SKIA6458E
SKIA6459E
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Sample Operation: (WIPER SWITCH TURNED TO LO POSITION)
●
When wiper switch is turned to LO position, front wiper LO contact inside combination switch becomes
ON. At this time, OUTPUT 3 transistor operates and BCM detects flow of current at INPUT 1.
●
When OUTPUT 3 transistor is ON and BCM detects current flowing at INPUT 1, BCM determines that
wiper switch is at LO. BCM uses CAN communication and sends front wiper signals to IPDM E/R.
●
When OUTPUT 3 transistor operates again and BCM again detects current flowing at INPUT 1, it confirms
that front wiper LO operation is continuing.
NOTE:
Each OUTPUT terminal transistor operates at 10 ms intervals. Therefore, a delay occurs between the
switch becoming ON and operation of the electric load. However, this delay is so small it is undetectable.
Operating Modes
The following operation modes exist for combination switch reading function.
Normal Status
When BCM is not in sleep status, OUTPUT terminals (1 - 5) each turn ON-OFF every 10 ms.
Sleep Status
When BCM is in sleep status, output from OUTPUT 1 and 2 transistors stops, with BCM entering a power-sav-
ing mode. OUTPUT (3 - 5) turns ON-OFF every 60 ms, and only input from lighting switch system is accepted.
SKIA4469E
SKIA3097E
FRONT WIPER AND WASHER SYSTEM
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Intermittent Operation
Wiper intermittent operation delay interval is determined from a combination of 3 switches (intermittent opera-
tion dial position 1, intermittent operation dial position 2, and intermittent operation dial position 3) and vehicle
speed signal.
During each intermittent operation delay interval, BCM sends front wiper request signal to IPDM E/R.
Wiper Dial Position Setting
Example: For wiper dial position 1.
Using combination switch reading function, BCM detects ON/OFF status of intermittent operation dial posi-
tions 1, 2, and 3.
When combination switch status is as listed below, BCM determines that it is wiper dial position 1.
●
Intermittent operation dial position 1: ON (input 3 and output 1 are conducting)
●
Intermittent operation dial position 2: ON (input 5 and output 1 are conducting)
●
Intermittent operation dial position 3: ON (input 4 and output 2 are conducting)
BCM determines front wiper intermittent operation delay interval from wiper dial position 1 and vehicle speed,
and sends wiper request signal (INT) to IPDM E/R.
CAN Communication System Description
AKS005MC
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
AKS007R1
Wiper dial position
Intermittent operation
interval
Combination switch
Intermittent operation
dial position 1
Intermittent operation
dial position 2
Intermittent operation
dial position 3
Wiper dial position 1
Small
↓
Large
ON
ON
ON
Wiper dial position 2
ON
ON
OFF
Wiper dial position 3
ON
OFF
OFF
Wiper dial position 4
OFF
OFF
OFF
Wiper dial position 5
OFF
OFF
ON
Wiper dial position 6
OFF
ON
ON
Wiper dial position 7
OFF
ON
OFF
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
×
×
×
×
×
×
×
×
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×
: Applicable
TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE 5/TYPE 6/TYPE 7/TYPE 8
System Diagram
●
Type1
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
WW-10, "TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE
WW-16, "TYPE 9/TYPE10/TYPE 11/TYPE 12/
TYPE 13/TYPE 14/TYPE 15/TYPE 16"
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
SKIA4902E
FRONT WIPER AND WASHER SYSTEM
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Type2
●
Type3
●
Type4
SKIA4903E
SKIA4904E
SKIA4905E
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Type5
●
Type6
●
Type7
SKIA4906E
SKIA4907E
SKIA4908E
FRONT WIPER AND WASHER SYSTEM
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Type8
SKIA4909E
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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
FRONT WIPER AND WASHER SYSTEM
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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
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