Nissan Murano Z50 (2004 year). Manual — part 51
TROUBLE DIAGNOSIS
CVT-35
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CVT
Revision: 2004 November
2004 Murano
4
❏
Perform road test.
4-1.
Check before engine is started
❏
CVT-186, "CVT Indicator Lamp Does Not Come On"
❏
Perform self-diagnostics. Enter checks for detected items.
❏
CVT-71, "DTC U1000 CAN COMMUNICATION LINE"
❏
CVT-74, "DTC P0615 START SIGNAL CIRCUIT"
.
❏
CVT-78, "DTC P0703 STOP LAMP SWITCH CIRCUIT"
❏
CVT-80, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
❏
CVT-88, "DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT"
❏
CVT-93, "DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)"
❏
CVT-98, "DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED
❏
CVT-104, "DTC P0725 ENGINE SPEED SIGNAL"
❏
CVT-106, "DTC P0730 BELT DAMAGE"
❏
CVT-108, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"
.
❏
CVT-113, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"
❏
CVT-116, "DTC P0745 LINE PRESSURE SOLENOID VALVE"
.
❏
CVT-121, "DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE
(LINE PRESSURE SOLENOID VALVE)"
❏
CVT-124, "DTC P0776 PRESSURE CONTROL SOLENOID B PERFOMANCE
(SEC PRESSURE SOLENOID VALVE)"
❏
CVT-127, "DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC
❏
CVT-132, "DTC P0826 MANUAL MODE SWITCH CIRCUIT"
❏
CVT-137, "DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT
❏
CVT-142, "DTC P0841 PRESSURE SENSOR FUNCTION"
❏
CVT-145, "DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT
❏
CVT-150, "DTC P0868 SECONDARY PRESSURE DOWN"
❏
CVT-153, "DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)"
.
❏
CVT-158, "DTC P1705 THROTTLE POSITION SENSOR"
.
❏
CVT-160, "DTC P1722 ESTM VEHICLE SPEED SIGNAL"
.
❏
CVT-162, "DTC P1723 CVT SPEED SENSOR FUNCTION"
❏
CVT-164, "DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM"
❏
CVT-166, "DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT"
❏
CVT-172, "DTC P1777 STEP MOTOR - CIRCUIT"
.
❏
CVT-176, "DTC P1778 STEP MOTOR - FUNCTION"
4-2.
Check at idle
❏
CVT-188, "Engine Cannot Be Started in “P” or “N” Position"
❏
CVT-189, "In “P” Position, Vehicle Moves Forward or Backward When Pushed"
❏
CVT-190, "In “N” Position, Vehicle Moves"
❏
❏
CVT-193, "Vehicle Does Not Creep Backward in “R” Position"
❏
CVT-195, "Vehicle Does Not Creep Forward in “D”, “S” or “L” Position"
.
CVT-36
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
4
4-3.
Cruise test
❏
❏
CVT-199, "Cannot Be Changed to Manual Mode"
❏
CVT-200, "CVT Does Not Shift in Manual Mode"
❏
CVT-202, "Cannot Be Changed to Second Position"
❏
CVT-203, "Cannot Be Changed to “L” Position"
.
❏
CVT-205, "Vehicle Does Not Decelerate by Engine Brake"
❏
perform self-diagnostics. Enter checks for detected items.
❏
CVT-71, "DTC U1000 CAN COMMUNICATION LINE"
❏
CVT-74, "DTC P0615 START SIGNAL CIRCUIT"
❏
CVT-78, "DTC P0703 STOP LAMP SWITCH CIRCUIT"
.
❏
CVT-80, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
❏
CVT-88, "DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT"
❏
CVT-93, "DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)"
❏
CVT-98, "DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED
.
❏
CVT-104, "DTC P0725 ENGINE SPEED SIGNAL"
.
❏
CVT-106, "DTC P0730 BELT DAMAGE"
❏
CVT-108, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"
.
❏
CVT-113, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"
.
❏
CVT-116, "DTC P0745 LINE PRESSURE SOLENOID VALVE"
❏
CVT-121, "DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE
(LINE PRESSURE SOLENOID VALVE)"
❏
CVT-124, "DTC P0776 PRESSURE CONTROL SOLENOID B PERFOMANCE
(SEC PRESSURE SOLENOID VALVE)"
.
❏
CVT-127, "DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC
❏
CVT-132, "DTC P0826 MANUAL MODE SWITCH CIRCUIT"
❏
CVT-137, "DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT
❏
CVT-142, "DTC P0841 PRESSURE SENSOR FUNCTION"
.
❏
CVT-145, "DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT
❏
CVT-150, "DTC P0868 SECONDARY PRESSURE DOWN"
❏
CVT-153, "DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)"
.
❏
CVT-158, "DTC P1705 THROTTLE POSITION SENSOR"
❏
CVT-160, "DTC P1722 ESTM VEHICLE SPEED SIGNAL"
.
❏
CVT-162, "DTC P1723 CVT SPEED SENSOR FUNCTION"
❏
CVT-164, "DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM"
❏
CVT-166, "DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT"
❏
CVT-172, "DTC P1777 STEP MOTOR - CIRCUIT"
❏
CVT-176, "DTC P1778 STEP MOTOR - FUNCTION"
5
❏
Inspect each system for items found to be NG in the self-diagnostics and repair or replace the malfunctioning parts.
6
❏
Perform all road tests and enter the checks again for the required items.
7
❏
For any remaining NG items, perform the “diagnostics procedure” and repair or replace the malfunctioning parts.
8
❏
Erase the results of the self-diagnostics from the TCM.
TROUBLE DIAGNOSIS
CVT-37
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CVT
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2004 Murano
CVT Electrical Parts Location (With Manual Mode)
ACS001T0
SCIA4583E
CVT-38
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
CVT Electrical Parts Location (Without Manual Mode)
ACS004Z7
SCIA4282E
TROUBLE DIAGNOSIS
CVT-39
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CVT
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2004 Murano
Circuit Diagram
ACS001T1
TCWB0001E
CVT-40
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
Inspections Before Trouble Diagnosis
ACS001T2
CVT FLUID CHECK
Fluid Leakage and Fluid Level Check
●
Inspect for fluid leakage and check the fluid level. Refer to
.
Fluid Condition Check
Inspect the fluid condition.
STALL TEST
Stall Test Procedure
1.
Inspect the amount of engine oil. Replenish the engine oil if necessary.
2.
Drive for about 10 minutes to warm up the vehicle so that the
CVT fluid temperature is 50 - 80
°
C (122 - 176
°
F). Inspect the
amount of CVT fluid. Replenish if necessary.
3.
Securely engage the parking brake so that the tires do not turn.
4.
Install a tachometer where it can be seen by driver during test.
●
It is good practice to mark the point of specified engine
rpm on indicator.
5.
Engine start, apply foot brake, and place selector lever in “D”
position.
Fluid status
Conceivable cause
Required operation
Varnished (viscous
varnish state)
Clutch, brake
scorched
Replace the CVT fluid and check
the CVT main unit and the vehicle
for malfunctions (wire harnesses,
cooler pipes, etc.)
Milky white or
cloudy
Water in the fluid
Replace the CVT fluid and check for
places where water is getting in.
Large amount of
metal powder mixed
in
Unusual wear of
sliding parts within
CVT
Replace the CVT fluid and check for
improper operation of the CVT.
SAT638A
SAT647B
SCIA1224E
SCIA4285E
TROUBLE DIAGNOSIS
CVT-41
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CVT
Revision: 2004 November
2004 Murano
6.
While holding down the foot brake, gradually press down the
accelerator pedal.
7.
Quickly read off the stall speed, and then quickly remove your
foot from the accelerator pedal.
CAUTION:
Do not hold down the accelerator pedal for more than 5 sec-
onds during this test.
8.
Move the selector lever to the “N” position.
9.
Cool down the CVT fluid.
CAUTION:
Run the engine at idle for at least one minute.
10. Repeat steps 5 through 9 with selector lever in “R” position.
Judgement Stall Test
O: Stall speed within standard value position
H: Stall speed higher than standard value
L: Stall speed lower than standard value
Stall speed:
2,700 - 3,250 rpm
SAT514G
SCIA4286E
Selector lever position
Expected problem location
“D”
“R”
Stall rotation
H
O
●
Forward clutch
O
H
●
Reverse brake
L
L
●
Engine and torque converter one-way clutch
H
H
●
Line pressure low
●
Primary pulley
●
Secondary pulley
●
Steel belt
CVT-42
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
LINE PRESSURE TEST
Line Pressure Test Port
Line Pressure Test Procedure
1.
Inspect the amount of engine oil and replenish if necessary.
2.
Drive the car for about 10 minutes to warm it up so that the CVT fluid reaches in the range of 50 - 80
°
C
(122 - 176
°
F), then inspect the amount of CVT fluid and replenish if necessary.
NOTE:
The CVT fluid temperature rises in the range of 50 - 80
°
C (122 - 176
°
F) during 10 minutes of driving.
3.
After warming up CVT, remove the oil pressure detection plug and install the oil pressure gauge [special
service tool: ST2505S001 (J-34301-C)].
CAUTION:
When using the oil pressure gauge, be sure to use the O- ring attached to the oil pressure detec-
tion plug.
4.
Securely engage the parking brake so that the tires do not turn.
5.
Start the engine, and then measure the line pressure at both idle
and the stall speed.
CAUTION:
●
Keep the brake pedal pressed all the way down during
measurement.
●
When measuring the line pressure at the stall speed,
refer to
6.
After the measurements are complete, install the oil pressure
detection plug and tighten to the specified torque below.
CAUTION:
Do not reuse the O-ring.
SCIA1980E
SCIA1224E
: 7.5 N·m (0.77 kg-m, 66 in-lb)
SAT493G
TROUBLE DIAGNOSIS
CVT-43
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CVT
Revision: 2004 November
2004 Murano
Line Pressure
*
1
: Without manual mode
*
2
: Reference values
Judgement of Line Pressure Test
*
1
: Without manual mode.
Engine
Engine speed
Line pressure
kPa (kg/cm
2
, psi)
“R”, “D”, “L”*
1
positions
VQ35DE
At idle speed
750 (7.65, 108.8)
At stall speed
5,300 - 5,700 (54.06 - 58.14, 768.5 - 826.5)*
2
Judgement Possible
cause
Idle speed
Low for all positions
(“P”, “R”, “N”, “D”,
“L”*
1
)
Possible causes include malfunctions in the pressure supply system and low oil pump output.
For example
●
Oil pump wear
●
Pressure regulator valve or plug sticking or spring fatigue
●
Oil strainer
Þ
oil pump
Þ
pressure regulator valve passage oil leak
●
Engine idle speed too low
Only low for a spe-
cific position
Possible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.
High
Possible causes include a sensor malfunction or malfunction in the line pressure adjustment func-
tion.
For example
●
Accelerator pedal position signal malfunction
●
CVT fluid temperature sensor malfunction
●
Pressure control solenoid A (line pressure solenoid) malfunction (sticking in “OFF” state, filter
clog, cut line)
●
Pressure regulator valve or plug sticking
Stall speed
Oil pressure does
not rise higher than
the oil pressure for
idle.
Possible causes include a sensor malfunction or malfunction in the pressure adjustment function.
For example
●
Accelerator pedal position signal malfunction
●
TCM breakdown
●
Pressure control solenoid A (line pressure solenoid) malfunction (shorting, sticking in “ON”
state)
●
Pressure regulator valve or plug sticking
The pressure rises,
but does not enter
the standard posi-
tion.
Possible causes include malfunctions in the pressure supply system and malfunction in the pres-
sure adjustment function.
For example
●
Accelerator pedal position signal malfunction
●
Pressure control solenoid A (line pressure solenoid) malfunction (sticking, filter clog)
●
Pressure regulator valve or plug sticking
Only low for a spe-
cific position
Possible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.
CVT-44
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
Road Test
ACS004MG
DESCRIPTION
●
The purpose of the test is to determine overall performance of
CVT and analyze causes of problems.
●
The road test consists of the following three parts:
1.
“Check Before Engine Is Started”
2.
3.
“Cruise Test”
●
Before road test, familiarize yourself with all test procedures
and items to check.
●
perform tests on all items until specified symptom is found.
Troubleshoot items which check out No Good after road test.
Refer to
CVT-27, "ON BOARD DIAGNOSTIC (OBD) SYS-
CONSULT-II SETTING PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
●
Using CONSULT-II, perform a cruise test and record the result.
●
Print the result and ensure that shifts and lock-ups take place as
per Shift Schedule.
1.
Turn ignition switch OFF.
2.
Connect CONSULT-II and CONSULT-II CONVERSTER to data
link connector, which is located in lower instrument panel on
driver side.
SAT786A
SAT496G
SAT601J
PBIB0196E
TROUBLE DIAGNOSIS
CVT-45
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CVT
Revision: 2004 November
2004 Murano
3.
Turn ignition switch ON.
4.
Touch “START (NISSAN BASED VHCL)”.
5.
Touch “TRANSMISSION”.
If “TRANSMISSION” is not indicated, go to
Data Link Connector (DLC) Circuit"
6.
Touch “DATA MONITOR”.
7.
Touch “MAIN SIGNALS” to set recording condition.
8.
See “Numerical Display”, “Barchart Display” or “Line Graph Dis-
play”.
9.
Touch “START”.
10. When performing cruise test. Refer to
11. After finishing cruise test part, touch “RECORD”.
SAIA0450E
SCIA4825E
SCIA5492E
SCIA5493E
SCIA4584E
CVT-46
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
12. Touch “STORE”.
13. Touch “BACK”.
14. Touch “DISPLAY”.
15. Touch “PRINT”.
16. Check the monitor data printed out.
SCIA4492E
SCIA4493E
SCIA4492E
SCIA4494E
TROUBLE DIAGNOSIS
CVT-47
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CVT
Revision: 2004 November
2004 Murano
Check Before Engine Is Started
ACS007WZ
1.
CHECK CVT INDICATOR LAMP
1.
Park vehicle on flat surface.
2.
Move selector lever to “P” position.
3.
Turn ignition switch OFF. Wait at least 5 seconds.
4.
Turn ignition switch ON. (Do not start engine.)
Does CVT indicator lamp come on for about 2 seconds?
YES
>> 1. Turn ignition switch OFF.
2. Perform self-diagnosis and note NG items.
CVT-62, "SELF-DIAGNOSTIC RESULT
.
3. Go to
NO
>> Stop “Road Test”. Go to
CVT-186, "CVT Indicator Lamp Does Not Come On"
Check at Idle
ACS007X0
1.
CHECK STARTING THE ENGINE
1.
Park vehicle on flat surface.
2.
Move selector lever to “P” or “N” position.
3.
Turn ignition switch OFF.
4.
Turn ignition switch to START position.
Is engine started?
YES
>> GO TO 2.
NO
>> Stop “Road Test”. Mark the box on the “DIAGNOSTIC
WORKSHEET”
. Go to
not Be Started in “P” or “N” Position"
2.
CHECK STARTING THE ENGINE
With manual mode
1.
Turn ignition switch ON.
2.
Move selector lever to “D”, or “R” position.
3.
Turn ignition switch to START position.
Without manual mode
1.
Turn ignition switch ON.
2.
Move selector lever to “D”, “S”, “L” or “R” position.
3.
Turn ignition switch to START position.
Is engine started?
YES
>> Stop “Road Test”. Mark the box on the “DIAGNOSTIC
WORKSHEET”
. Go to
not Be Started in “P” or “N” Position"
NO
>> GO TO 3.
SCIA4356E
SCIA4361E
SCIA4585E
SCIA4362E
CVT-48
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
3.
CHECK “P” POSITION FUNCTION
1.
Move selector lever to “P” position.
2.
Turn ignition switch OFF.
3.
Release parking brake.
4.
Push vehicle forward or backward.
5.
Apply parking brake.
Does vehicle move when it is pushed forward or backward?
YES
>> Mark the box “In “P” Position, Vehicle Moves Forward Or
Backward When Pushed” on the “DIAGNOSTIC WORK-
SHEET”
. Continue “Road Test”.
NO
>> GO TO 4.
4.
CHECK “N” POSITION FUNCTION
1.
Start engine.
2.
Move selector lever to “N” position.
3.
Release parking brake.
Does vehicle move forward or backward?
YES
>> Mark the box “In “N” Position, Vehicle Moves” on the
“DIAGNOSTIC WORKSHEET”
. Continue
“Road Test”.
NO
>> GO TO 5.
SCIA4363E
SAT796A
SCIA4286E
TROUBLE DIAGNOSIS
CVT-49
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Revision: 2004 November
2004 Murano
5.
CHECK SHIFT SHOCK
1.
Apply foot brake.
2.
Move selector lever to “R” position.
Is there large shock when changing from “N” to “R” position?
YES
>> Mark the box “Large shock “N”
→
“R” Position” on the
“DIAGNOSTIC WORKSHEET”
. Continue
“Road Test”.
NO
>> GO TO 6.
6.
CHECK “R” POSITION FUNCTION
Release foot brake for several seconds.
Does vehicle creep backward when foot brake is released?
YES
>> GO TO 7.
NO
>> Mark the box “Vehicle Does Not Creep Backward in “R”
Position” on the “DIAGNOSTIC WORKSHEET”
. Continue “Road Test”.
SAT797A
SCIA4364E
SAT799A
CVT-50
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
7.
CHECK “D”, “S”, “L” POSITION FUNCTION
With manual mode
Move selector lever to “D” positions and check if vehicle creeps for-
ward.
Without manual mode
Move selector lever to “D”, “S” and “L” positions and check if vehicle
creeps forward.
Does vehicle creep forward in all four positions?
YES
>> Go to
NO
>> Mark the box “Vehicle Does Not Creep Forward in “D”,
“S” or “L” Position” on the “DIAGNOSTIC WORK-
SHEET”
. Continue “Road Test”.
SCIA4586E
SCIA4365E
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