Nissan Murano Z50 (2004 year). Manual — part 48
RADIATOR (ALUMINUM TYPE)
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4.
Make sure that the rim is completely crimped down.
5.
Make sure that there is no leakage.
Refer to
INSPECTION
1.
Apply pressure with radiator cap tester adapter [SST] and radia-
tor cap tester (commercial service tool).
WARNING:
To prevent the risk of hose coming undone while under
pressure, securely fasten it down with hose clamp.
CAUTION:
Attach hose to CVT fluid cooler to seal its inlet and outlet.
2.
Check for leakage by soaking radiator in water container with
the testing pressure applied.
Standard height “H”
: 8.0 - 8.4 mm (0.315 - 0.331 in)
SLC554A
Testing pressure
: 157 kPa (1.6 kg/cm
2
, 23 psi)
SLC933-A
SLC934
CO-20
COOLING FAN
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COOLING FAN
PFP:21140
Removal and Installation
ABS00D9I
REMOVAL
1.
Drain engine coolant from radiator. Refer to
CO-9, "Changing Engine Coolant"
CAUTION:
●
Perform this step when engine is cold.
●
Do not spill engine coolant on drive belts.
2.
Remove air duct (inlet). Refer to
EM-14, "AIR CLEANER AND AIR DUCT"
3.
Disconnect radiator hose (upper) at radiator side. Refer to
4.
Disconnect harness connector from fan motors, and move harness to aside.
5.
Remove battery and battery tray, and move fuse and fusible link block to aside. Refer to
6.
Remove mounting bolts to lift up and remove radiator cooling fan assembly.
CAUTION:
Be careful not to damage or scratch on radiator core.
INSTALLATION
Install in the reverse order of removal.
●
Cooling fans are controlled by ECM. For details, refer to .
EC-427, "DTC P1217 ENGINE OVER TEMPER-
1.
Cooling fan (RH)
2.
Cooling fan (LH)
3.
Fan shroud
4.
Fan motor
PBIC2694E
COOLING FAN
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Disassembly and Assembly
ABS00D9J
DISASSEMBLY
1.
Remove cooling fans (RH and LH) from fan motors.
2.
Remove fan motors from fan shroud.
INSPECTION AFTER DISASSEMBLY
Cooling Fan
Inspect cooling fan for crack or unusual bend.
●
If anything is found, replace cooling fan.
ASSEMBLY
Assemble in the reverse order of disassembly.
CO-22
WATER PUMP
Revision: 2004 November
2004 Murano
WATER PUMP
PFP:21020
Removal and Installation
ABS00353
CAUTION:
●
When removing water pump assembly, be careful not to get engine coolant on drive belt.
●
Water pump cannot be disassembled and should be replaced as a unit.
●
After installing water pump, connect hose and clamp securely, then check for leaks using radiator
cap tester (commercial service tool) and radiator cap tester adapter [SST: EG17650301 (J33984-
A)].
REMOVAL
1.
Remove engine cover. Refer to
EM-16, "INTAKE MANIFOLD COLLECTOR"
.
2.
Remove air duct (inlet) and radiator cover grills (right and left sides). Refer to
3.
Remove undercover and splash guard (RH).
4.
Drain engine coolant from radiator. Refer to
CO-9, "Changing Engine Coolant"
CAUTION:
●
Perform this step when engine is cold.
●
Do not spill engine coolant on drive belts.
5.
Remove drive belts. Refer to
.
6.
Remove reservoir tank of radiator. Refer to
7.
Remove reservoir tank of power steering oil pump with piping connected, and move it to aside. Refer to
.
8.
Support oil pan (lower) bottom with transmission jack.
9.
Remove RH engine mounting insulator and RH engine mounting bracket. Refer to
1.
Water pump
2.
Timing chain tensioner (primary)
3.
Chain tensioner cover
4.
Water drain plug (front)
5.
Water pump cover
6.
O-ring
7.
O-ring
PBIC2695E
WATER PUMP
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10. Remove water drain plug (front) on water pump side of cylinder
block to drain engine coolant from engine inside.
11. Remove chain tensioner cover and water pump cover from front timing chain case.
●
Use seal cutter [SST: KV10111100 (J37228)] to cut liquid gasket for removal.
12. Remove idler pulley and bracket. Refer to
.
13. Remove timing chain tensioner (primary) as follows:
a.
Pull lever down and release plunger stopper tab.
●
Plunger stopper tab can be pushed up to release (coaxial
structure with lever).
b.
Insert stopper pin into tensioner body hole to hold lever, and
keep tab released.
NOTE:
Allen wrench [2.5 mm (0.098 in)] is used for stopper pin as an
example.
c.
Insert plunger into tensioner body by pressing slack guide.
d.
Keep slack guide pressed and hold plunger in by pushing stop-
per pin through the lever hole and tensioner body hole.
e.
Turn crankshaft pulley clockwise so that timing chain on the tim-
ing chain tensioner (primary) side is loose.
f.
Remove mounting bolts and remove timing chain tensioner (pri-
mary).
CAUTION:
Be careful not to drop mounting bolts inside timing chain
case.
14. Remove water pump as follows:
PBIC2662E
PBIC2112E
PBIC1805E
PBIC2113E
CO-24
WATER PUMP
Revision: 2004 November
2004 Murano
a.
Remove three water pump mounting bolts. Secure a gap
between water pump gear and timing chain, by turning crank-
shaft pulley counterclockwise until timing chain looseness on
water pump sprocket becomes maximum.
b.
Screw M8 bolts [pitch: 1.25 mm (0.049 in) length: approx. 50
mm (1.97 in)] into water pumps upper and lower mounting bolt
holes until they reach timing chain case. Then, alternately
tighten each bolt for a half turn, and pull out water pump.
CAUTION:
●
Pull straight out while preventing vane from contacting
socket in installation area.
●
Remove water pump without causing sprocket to contact
timing chain.
c.
Remove M8 bolts and O-rings from water pump.
CAUTION:
Do not disassemble water pump.
INSPECTION AFTER REMOVAL
●
Check for badly rusted or corroded water pump body assembly.
●
Check for rough operation due to excessive end play.
●
Replace water pump, if necessary.
INSTALLATION
1.
Install new O-rings to water pump.
●
Apply engine oil and engine coolant to O-rings as shown in
the figure.
●
Locate O-ring with white paint mark to engine front side.
PBIC1193E
JLC357B
SLC943A
PBIC1397E
WATER PUMP
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2.
Install water pump.
CAUTION:
Do not allow cylinder block to nip O-rings when installing
water pump.
●
Check that timing chain and water pump sprocket are
engaged.
●
Insert water pump by tightening mounting bolts alternately
and evenly.
3.
Install timing chain tensioner (primary) as follows:
a.
Remove dust and foreign material completely from backside of timing chain tensioner (primary) and from
installation area of rear timing chain case.
b.
Turn crankshaft pulley clockwise so that timing chain on the timing chain tensioner (primary) side is loose.
c.
Install timing chain tensioner (primary) with its stopper pin attached.
CAUTION:
Be careful not to drop mounting bolts inside timing chain case.
d.
Remove stopper pin.
e.
Make sure again that timing chain and water pump sprocket are engaged.
4.
Install chain tensioner cover and water pump cover as follows:
a.
Before installing, remove all traces of old liquid gasket from mat-
ing surface of water pump cover and chain tensioner cover
using scraper. Also remove traces of old liquid gasket from the
mating surface of front timing chain case.
b.
Apply a continuous bead of liquid gasket with tube presser [SST:
WS39930000 (
—
)] to mating surface of chain tensioner
cover and water pump cover.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-47, "RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS"
.
CAUTION:
Attaching should be done within 5 minutes after coating.
c.
Tighten mounting bolts.
5.
Install water drain plug (front) on water pump side of cylinder block.
SLC031B
SLC448B
SLC446B
PBIC2663E
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WATER PUMP
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●
Apply liquid gasket to the thread of water drain plug (front).
Use Genuine RTV Silicone Sealant or equivalent. Refer to
.
6.
Install in the reverse order of removal after this step.
●
After starting engine, let idle for three minutes, then rev engine up to 3,000 rpm under no load to
purge air from the high-pressure chamber of chain tensioner. Engine may produce a rattling
noise. This indicates that air still remains in the chamber and is not a matter of concern.
INSPECTION AFTER INSTALLATION
●
Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J33984-A)] and
radiator cap tester (commercial service tool). Refer to
●
Start and warm up engine. Visually check it there is no leaks of engine coolant.
WATER INLET AND THERMOSTAT ASSEMBLY
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WATER INLET AND THERMOSTAT ASSEMBLY
PFP:21200
Removal and Installation
ABS00354
REMOVAL
1.
Drain engine coolant from radiator. Refer to
CO-9, "Changing Engine Coolant"
CAUTION:
●
Perform when engine is cold.
●
Be careful not to get engine coolant on drive belt.
2.
Drain engine coolant from radiator drain plug at the bottom of radiator, and from water drain plug at the
front of cylinder block. Refer to
CO-9, "Changing Engine Coolant"
.
CAUTION:
●
Perform this step when engine is cold.
●
Do not spill engine coolant on drive belts.
3.
Remove reservoir tank of radiator, and move it aside.
4.
Disconnect radiator hose (lower) and oil cooler water hose from water inlet and thermostat assembly.
5.
Remove water inlet and thermostat assembly.
CAUTION:
Do not disassemble water inlet and thermostat assembly.
Replace them as a unit, if necessary.
1.
Gasket
2.
Water inlet and thermostat assembly
3.
Radiator hose (lower)
4.
Water hose
PBIC2696E
SLC962AB
CO-28
WATER INLET AND THERMOSTAT ASSEMBLY
Revision: 2004 November
2004 Murano
INSPECTION AFTER REMOVAL
1.
Check valve seating condition at ordinary room temperatures. It should seat tightly.
2.
Check valve operation.
●
If the malfunctioning condition, when valve seating at ordinary
room temperature, or measured values are out of the standard,
replace water inlet and thermostat assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
●
Be careful not to spill engine coolant over engine room. Use rag to absorb engine coolant.
INSPECTION AFTER INSTALLATION
●
Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J33984-A)] and
radiator cap tester (commercial service tool). Refer to
●
Start and warm up engine. Visually check it there is no leaks of engine coolant.
Thermostat
Standard
Valve opening temperature
80.5 - 83.5
°
C (177 - 182
°
F)
Maximum valve lift
8.6 mm / 95
°
C (0.339 in / 203
°
F)
Valve closing temperature
77
°
C (171
°
F)
SLC949A
WATER OUTLET AND WATER PIPING
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WATER OUTLET AND WATER PIPING
PFP:11060
Removal and Installation
ABS0035E
REMOVAL
1.
EM-16, "INTAKE MANIFOLD COLLECTOR"
2.
Drain engine coolant from radiator drain plug at the bottom of radiator, and from water drain plug at the
front of cylinder block. Refer to
CO-9, "Changing Engine Coolant"
.
CAUTION:
●
Perform this step when engine is cold.
●
Do not spill engine coolant on drive belts.
3.
Remove air duct (inlet), radiator cover grills (right and left sides), air cleaner case (upper) with mass air
flow sensor and air duct assembly. Refer to
EM-14, "AIR CLEANER AND AIR DUCT"
4.
Remove battery and battery tray. Refer to
SC-8, "Removal and Installation"
5.
Remove CVT fluid cooler control valve assembly. Refer to
.
6.
Move CVT control cable aside. Refer to
CVT-207, "SHIFT CONTROL SYSTEM"
7.
Remove radiator hose (upper).
8.
Remove water hoses and heater hoses.
9.
Disconnect harness connectors, and move harness to aside.
1.
Radiator hose (upper)
2.
Washer
3.
Engine coolant temperature sensor
4.
Heater hose
5.
Water outlet
6.
Water hose
7.
Gasket
8.
Water hose
9.
Gasket
10. Water connector
11.
O-ring
12. Heater pipe
13. Heater hose
14. Water bypass pipe
15. Water hose
PBIC2697E
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WATER OUTLET AND WATER PIPING
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2004 Murano
10. Remove engine coolant temperature sensor as necessary.
CAUTION:
Be careful not to damage engine coolant temperature sensor.
11. Remove water outlet, heater pipe, water bypass pipe and water connector.
INSTALLATION
Note the following, and install in the reverse order of removal.
●
Securely insert each hose, and install clamp at a position where it does not interfere with the pipe bulge.
●
When inserting water bypass pipe and heater pipe into water connector, apply neutral detergent to O-ring.
INSPECTION AFTER INSTALLATION
●
Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J33984-A)] and
radiator cap tester (commercial service tool). Refer to
●
Start and warm up engine. Visually check it there is no leaks of engine coolant.
SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00100
Engine Coolant Capacity (Approximate)
ABS0035J
Unit:
(US qt, Imp qt)
Radiator
ABS0035L
Unit: kPa (kg/cm
2
, psi)
Thermostat
ABS0035K
Tightening Torque
ABS0035M
Unit: N·m (kg-m, ft-lb)
Unit: N·m (kg-m, in-lb)*
Engine coolant capacity (With reservoir tank at “MAX” level)
9.2 (9-3/4, 8-1/8)
Reservoir tank engine coolant capacity (At “MAX” level)
0.8 (7/8 , 3/4)
Cap relief pressure
Standard
78 - 98 (0.8 - 1.0, 11 - 14)
Limit
59 (0.6, 9)
Leakage testing pressure
157 (1.6, 23)
Valve opening temperature
80.5 - 83.5
°
C (177 - 182
°
F)
Maximum valve lift
8.6 mm / 95
°
C (0.339 in / 203
°
F)
Valve closing temperature
77
°
C (171
°
F)
Radiator drain plug
0.78 - 1.56 (0.08 - 0.15, 7 - 13)*
Radiator cooling fan assembly
3.9 - 4.5 (0.40 - 0.45, 35 - 39)*
Cooling fan
3.4 (0.35, 30)*
Fan motor
4.4 (0.45, 39)*
Water drain plug (front)
9.8 (1.0, 87)*
Water pump cover
11.3 (1.2, 8)
Water pump
9.6 (0.98, 85)*
Chain tensioner cover
11.3 (1.2, 8)
Timing chain tensioner
8.1 (0.83, 72)*
Water inlet and thermostat assembly
9.6 (0.98, 85)*
Water outlet
24.5 (2.5, 18)
Engine coolant temperature sensor
24.5 (2.5, 18)
CO-32
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2004 November
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CVT-1
CVT
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION
CVT
A
B
CVT
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CVT
INDEX FOR DTC . . . . . . . . . . . . . . 6
Alphabetical Index . . . . . . . . . . . . . 6
DTC No. Index . . . . . . . . . . . . . . . 7
PRECAUTIONS . . . . . . . . . . . . . . .. 8
Removal and Installation Procedure for CVT Unit
Connector . . . . . . . . . . . . . . . . . 9
REMOVAL . . . . . . . . . . . . . . . . 9
INSTALLATION . . . . . . . . . . . . . . 9
Precautions . . . . . . . . . . . . . . . 10
Service Notice or Precautions . . . . . . . . .11
CVT FLUID COOLER SERVICE . . . . . . ..11
OBD-II SELF-DIAGNOSIS . . . . . . . . ...11
Wiring Diagrams and Trouble Diagnosis . . . . .11
PREPARATION . . . . . . . . . . . . . . . 12
Special Service Tools . . . . . . . . . . . . 12
Commercial Service Tools . . . . . . . . . .. 13
CVT FLUID . . . . . . . . . . . . . . . ... 14
Checking CVT Fluid . . . . . . . . . . . ... 14
FLUID LEVEL CHECK . . . . . . . . . . 14
Changing CVT Fluid . . . . . . . . . . . ... 15
CVT Fluid Cooler Cleaning . . . . . . . . . 15
CVT FLUID COOLER CLEANING PROCEDURE
CVT SYSTEM . . . . . . . . . . . . . . ... 18
CONTROL SYSTEM OUTLINE . . . . . . .. 21
CONTROL SYSTEM DIAGRAM . . . . . . . 21
CAN Communication . . . . . . . . . . . .. 22
SYSTEM DESCRIPTION . . . . . . . . . 22
Input/Output Signal of TCM . . . . . . . . . 22
Line Pressure and Secondary Pressure Control . 23
NORMAL CONTROL . . . . . . . . . . .. 23
FEEDBACK CONTROL . . . . . . . . . .. 23
Shift Control . . . . . . . . . . . . . . . 23
Lock-up and Select Control . . . . . . . . . 25
TORQUE CONVERTER CLUTCH AND SELECT
CONTROL VALVE CONTROL . . . . . . . 25
Control Valve . . . . . . . . . . . . . . .. 26
FUNCTION OF CONTROL VALVE . . . . . . 26
ON BOARD DIAGNOSTIC (OBD) SYSTEM . . . 27
ONE TRIP DETECTION LOGIC . . . . . . . 27
TWO TRIP DETECTION LOGIC . . . . . . . 27
OBD-II Diagnostic Trouble Code (DTC) . . . . . 27
Malfunction Indicator Lamp (MIL) . . . . . . ... 30
DESCRIPTION . . . . . . . . . . . . . 30
CVT-2
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Fail-safe . . . . . . . . . . . . . . . . .. 31
FAIL-SAFE FUNCTION . . . . . . . . . ... 31
How to Perform Trouble Diagnosis for Quick and
Accurate Repair . . . . . . . . . . . . . .. 32
Road Test . . . . . . . . . . . . . . . ... 44
DESCRIPTION . . . . . . . . . . . . . 44
CONSULT-II SETTING PROCEDURE . . . . 44
TCM TERMINAL CONNECTOR LAYOUT . . .. 56
TCM INSPECTION TABLE . . . . . . . . .. 56
CONSULT-II . . . . . . . . . . . . . . . 59
Diagnostic Procedure Without CONSULT-II . . ... 70
OBD-II SELF-DIAGNOSTIC PROCEDURE
(WITH GST) . . . . . . . . . . . . . . . 70
DTC U1000 CAN COMMUNICATION LINE . . . .. 71
WITH CONSULT-II . . . . . . . . . . . .. 71
WITH GST . . . . . . . . . . . . . . ... 71
Wiring Diagram — CVT — CAN . . . . . . . . 72
Diagnostic Procedure . . . . . . . . . . . . 73
DTC P0615 START SIGNAL CIRCUIT . . . . . . 74
WITH CONSULT-II . . . . . . . . . . . .. 74
Wiring Diagram — CVT — STSIG . . . . . . .. 75
Diagnostic Procedure . . . . . . . . . . . . 76
DTC P0703 STOP LAMP SWITCH CIRCUIT . . ... 78
Possible Cause . . . . . . . . . . . . . ...78
DTC Confirmation Procedure . . . . . . . . ..78
WITH CONSULT-II . . . . . . . . . . . ...78
Diagnostic Procedure . . . . . . . . . . . ..79
DTC P0705 PARK/NEUTRAL POSITION SWITCH ...80
WITH CONSULT-II . . . . . . . . . . . ...81
WITH GST . . . . . . . . . . . . . . ...81
PNP SWITCH . . . . . . . . . . . . . ..87
DTC P0710 CVT FLUID TEMPERATURE SENSOR
CIRCUIT . . . . . . . . . . . . . . . . . 88
WITH CONSULT-II . . . . . . . . . . . ...88
WITH GST . . . . . . . . . . . . . . ...88
CVT FLUID TEMPERATURE SENSOR . . . ..92
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI
SPEED SENSOR) . . . . . . . . . . . . . .93
WITH CONSULT-II . . . . . . . . . . . ...93
WITH GST . . . . . . . . . . . . . . ...93
Wiring Diagram — CVT — PRSCVT . . . . . ..94
Diagnostic Procedure . . . . . . . . . . . ..95
DTC P0720 VEHICLE SPEED SENSOR CVT (SEC-
ONDARY SPEED SENSOR) . . . . . . . . . .98
WITH CONSULT-II . . . . . . . . . . . ...98
WITH GST . . . . . . . . . . . . . . ...98
Wiring Diagram — CVT — SESCVT . . . . . ..99
Diagnostic Procedure . . . . . . . . . . . 100
DTC P0725 ENGINE SPEED SIGNAL . . . . . 104
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