Nissan Murano Z50 (2003 year). Manual — part 64
TROUBLE DIAGNOSIS
CVT-65
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41
V/O
Transmission fluid
pressure sensor B
(primary pressure
sensor)
N position idle
0.7 - 1.2V
42
W/R
Sensor ground
—
0V
46
L/O
Sensor power
—
4.5 - 5.5V
47
V
CVT fluid temper-
ature sensor
When CVT fluid temperature is 20
°
C (68
°
F)
2.0V
When CVT fluid temperature is 80
°
C (176
°
F)
1.0V
48
B
Ground
—
0V
Terminal
No.
Wire
color
Item
Condition
Data (Approx.)
CVT-66
TROUBLE DIAGNOSIS
Revision; 2004 April
2003 Murano
CONSULT-II
ACS004LP
After performing
CVT-70, "SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)"
, place check marks for
results on the
CVT-52, "DIAGNOSTIC WORKSHEET"
. Reference pages are provided following the items.
NOTICE:
●
Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II
unit.
FUNCTION
WORK SUPPORT MODE WITH CONSULT-II
Engine Brake Adjustment
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.
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.
3.
Turn ignition switch “ON”.
4.
Touch “START (NISSAN BASED VHCL)”.
Diagnostic test mode
Function
Reference page
Work support
This mode enables a technician to adjust some devices faster and more accurately by
following the indications on CONSULT-II.
Self-diagnostic results
Self-diagnostic results can be read and erased quickly.
Data monitor
Input/Output data in the ECM can be read.
CAN diagnostic support
monitor
The results of transmit/receive diagnosis of CAN communication can be read.
—
CALIB data
Characteristic information for TCM and CVT assembly can be read. Do not use, but
displayed.
—
Function test
Conducted by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.
—
ECU (TCM) part number
ECU (TCM) part number can be read.
—
Work support item
Description
ENGINE BRAKE ADJ.
The engine brake level setting can be canceled.
CONFORM CVTF DETERIORTN
The CVT fluid deterioration level can be checked.
PBIB0196E
SAIA0450E
TROUBLE DIAGNOSIS
CVT-67
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5.
Touch “TRANSMISSION”.
6.
Touch “WORK SUPPORT”.
7.
Touch “ENGINE BRAKE ADJUSTMENT”.
8.
Touch “START”.
9.
Set “ENGINE BRAKE LEVEL” by touching “UP” or “DOWN”.
10. Turn ignition switch “OFF”, wait at least 5 seconds and then turn
ignition switch “ON”.
SCIA2272E
SCIA5492E
SCIA4287E
SCIA4288E
ENGINE BRAKE LEVEL
0: Initial set value (Engine brake level control is
activated)
OFF: Engine brake level control is deactivated.
SAT934J
CVT-68
TROUBLE DIAGNOSIS
Revision; 2004 April
2003 Murano
11. Engine brake level set is completed.
CAUTION:
Mode of “+1” “0” “-1” “-2” “OFF” can be selected by pressing the “UP” “DOWN” on CONSULT
screen. However, do not select mode other than “0” and “OFF”. If the “+1” or “-1” or “-2” is
selected, that might cause the abnormality of drivability.
Check CVT Fluid Deterioration Date
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.
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.
3.
Turn ignition switch “ON”.
4.
Touch “START (NISSAN BASED VHCL)”.
5.
Touch “TRANSMISSION”.
6.
Touch “WORK SUPPORT”.
PBIB0196E
SAIA0450E
SCIA2272E
SCIA5492E
TROUBLE DIAGNOSIS
CVT-69
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7.
Touch “CONFORM CVTF DETERIORTN”.
8.
Check“CVTF DETERIORATION DATE”
CAUTION:
Touch “CLEAR” after changing CVT fluid, and then erase
“CVTF DETERIORATION”.
SCIA4287E
CVTF DETERIORATION DATE
More than 210000
: It is necessary to change CVT fluid.
Less than 210000
: It is not necessary to change CVT fluid.
SCIA4289E
SCIA4290E
CVT-70
TROUBLE DIAGNOSIS
Revision; 2004 April
2003 Murano
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)
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.
●
For details, refer to the separate “CONSULT-II Operations Manual”.
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.
3.
Turn ignition switch “ON”.
4.
Touch “START (NISSAN BASED VHCL)”.
5.
Touch “ENGINE” for OBD-II detected items or touch “TRANS-
MISSION” for TCM self-diagnosis.
If “TRANSMISSION” or “ENGINE” is not indicated, go to
"CONSULT-II Data Link Connector (DLC) Circuit"
.
6.
Touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
CONSULT-II performs REAL-TIME SELF-DIAGNOSIS.
Also, any malfunction detected while in this mode will be dis-
played at real time.
PBIB0196E
SAIA0450E
SCIA2272E
SAT987J
TROUBLE DIAGNOSIS
CVT-71
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Self-Diagnostic Result Test Mode
Items (CONSULT-II
screen terms)
Malfunction is detected when...
TCM self-diag-
nosis
OBD-II (DTC)
“TRANSMIS-
SION” with
CONSULT-II
MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
CAN COMM CIR-
CUIT
●
When a malfunction is detected in CAN communications
U1000
U1000
STARTER RELAY/
CIRC
●
If this signal is ON other than in P or N position, this is judged to be
a malfunction.
(And if it is OFF in P or N position, this is judged to be a malfunc-
tion too.)
P0615
—
BRAKE SW/CIRC
●
When the brake switch does not switch to ON or OFF
P0703
—
PNP SW/CIRC
●
PNP switch 1-4 signals input with impossible pattern
●
PNP switch 3 monitor terminal open or short circuit
P0705
P0705
ATF TEMP SEN/
CIRC
●
During running, the CVT fluid temperature sensor signal voltage is
excessively high or low
P0710
P0710
INPUT SPD SEN/
CIRC (IN PY SPD
SEN/CIRC)*2
●
Input speed sensor (primary speed sensor) signal is not input due
to an open circuit.
●
An unexpected signal is input when vehicle is being driven.
P0715
P0715
VEH SPD SEN/CIR
AT
●
Signal from vehicle speed sensor CVT [Output speed sensor
(Secondary speed sensor)] not input due to open or short circuit
●
Unexpected signal input during running
P0720
P0720
ENGINE SPEED SIG
●
TCM does not receive the CAN communication signal from the
ECM.
P0725
—
BELT DAMG
●
Unexpected gear ratio detected
P0730
—
TCC SOLENOID/
CIRC
●
Normal voltage not applied to solenoid due to open or short circuit
P0740
P0740
A/T TCC S/V FNCTN
●
CVT cannot perform lock-up even if electrical circuit is good.
●
TCM detects as irregular by comparing difference value with slip
rotation.
P0744
P0744
L/PRESS SOL/CIRC
●
Normal voltage not applied to solenoid due to open or short circuit
●
TCM detects as irregular by comparing target value with monitor
value.
P0745
P0745
PRS CNT SOL/A
FCTN (L/PRESS
SOL/FNCTN)*2
●
Unexpected gear ratio was detected in the LOW side due to
excessively low line pressure.
P0746
P0746
PRS CNT SOL/B
FCTN (SEC/PRESS
SOL/FNCTN)*2
●
Secondary pressure is too high or too low compared with the com-
manded value while driving.
P0776
P0776
PRS CNT SOL/B
CIRC (SEC/PRESS
SOL/CIRC)*2
●
Normal voltage not applied to solenoid due to cut line, short, or the
like
●
TCM detects as irregular by comparing target value with monitor
value.
P0778
P0778
TR PRS SENS/A
CIRC (SEC PRS
SEN/CIRC)*2
●
Signal voltage of the transmission fluid pressure sensor A (sec-
ondary pressure sensor) is too high or too low while driving.
P0840
P0840
PRESS SEN/FNCTN
●
Correlation between the values of the transmission fluid pressure
sensor A (secondary pressure sensor) and the transmission fluid
pressure sensor B (primary pressure sensor) is out of specifica-
tion.
P0841
—
CVT-72
TROUBLE DIAGNOSIS
Revision; 2004 April
2003 Murano
*1: Refer to
CVT-48, "Malfunction Indicator Lamp (MIL)"
.
*2: CONSULT-II screen terms are shown differently depending on the version of CONSULT-II card.
TR PRS SENS/B
CIRC (PRI PRS SEN/
CIRC)*2
●
Signal voltage of the transmission fluid pressure sensor B (primary
pressure sensor) is too high or too low while driving.
P0845
P0845
SEC/PRESS DOWN
●
Secondary fluid pressure is too low compared with the com-
manded value while driving.
P0868
—
TCM-POWER SUP-
PLY
●
When the power supply to the TCM is cut “OFF”, for example
because the battery is removed, and the self-diagnostics memory
function stops
●
This is not a malfunction message (Whenever shutting “OFF” a
power supply to the TCM, this message appears on the screen.)
P1701
—
TP SEN/CIRC A/T
●
TCM does not receive the proper accelerator pedal position sig-
nals (input by CAN communication) from ECM.
P1705
—
ESTM VEH SPD SIG
●
CAN communication with the ABS actuator and the electric unit
(control unit) is malfunctioning.
●
There is a great difference between the vehicle speed signal from
the ABS actuator and the electric unit (control unit), and the vehi-
cle speed sensor signal.
P1722
—
CVT SPD SEN/
FNCTN
●
A rotation sensor error is detected because the gear does not
change in accordance with the position of the stepping motor.
CAUTION:
One of the secondary rotation, the primary rotation, or the
engine speed is displayed at the same time.
P1723
—
ELEC TH CONTROL
●
The electronically controlled throttle for ECM is malfunctioning.
P1726
—
LU-SLCT SOL/CIRC
●
Normal voltage not applied to solenoid due to cut line, short, or the
like
●
TCM detects as irregular by comparing target value with monitor
value.
P1740
P1740
L/PRESS CONTROL
●
TCM detects the unexpected line pressure.
P1745
—
STEP MOTOR/CIRC
●
Each coil of the step motor is not energized properly due to an
open or a short.
P1777
P1777
STEP MOTOR/
FNCTN
●
There is a great difference between the number of steps for the
stepping motor and for the actual gear ratio.
P1778
P1778
NO DTC IS
DETECTED: FUR-
THER TESTING
MAY BE REQUIRED
●
No NG item has been detected.
X
X
Items (CONSULT-II
screen terms)
Malfunction is detected when...
TCM self-diag-
nosis
OBD-II (DTC)
“TRANSMIS-
SION” with
CONSULT-II
MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
TROUBLE DIAGNOSIS
CVT-73
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Data Monitor Mode (CVT)
X: Standard, —: Not applicable
Monitored item (Unit)
Monitor Item Selection
Remarks
ECU INPUT
SIGNALS
MAIN SIG-
NALS
SELEC-
TION FROM
MENU
VSP SENSOR (km/h)
X
—
X
Output speed sensor (secondary speed
sensor).
ESTM VSP SIG (km/h)
X
—
X
PRI SPEED SEN (rpm)
X
—
X
ENG SPEED SIG (rpm)
X
—
X
SEC HYDR SEN (V)
X
—
X
PRI HYDR SEN (V)
X
—
X
ATF TEMP SEN (V)
X
—
X
VVIGN SEN (V)
X
—
X
VEHICLE SPEED (km/h)
—
X
X
Vehicle speed recognized by the TCM.
PRI SPEED (rpm)
—
X
X
Primary pulley speed.
SEC SPEED (rpm)
—
—
X
Secondary pulley speed.
ENG SPEED (rpm)
—
X
X
SLIP REV (rpm)
—
X
X
Difference between engine speed and
primary pulley speed
GEAR RATIO
—
X
X
G SPEED (G)
—
—
X
ACC PEDAL OPEN (0.0/8)
X
X
X
Degree of opening for accelerator rec-
ognized by the TCM
For fail-safe operation, the specific
value used for control is displayed.
ENG TRQ ACT (N-m)
—
—
X
VENG TRQ (N-m)
—
X
X
PRI TRQ (N-m)
—
—
X
TRQ RTO
—
—
X
SEC PRESS (MPa)
—
X
X
PRI PRESS (MPa)
—
X
X
ATF TEMP
—
X
X
DSR REV (rpm)
—
—
X
DGEAR RATIO
—
—
X
DSTM STEP (step)
—
—
X
STM STEP (step)
—
X
X
LU PRS (MPa)
—
—
X
LINE PRS (MPa)
—
—
X
SEC PRS (MPa)
—
—
X
ISOLT1 (A)
—
X
X
Torque converter clutch solenoid valve
output current
ISOLT2 (A)
—
X
X
Pressure control solenoid valve A (line
pressure solenoid valve) output current
ISOLT3 (A)
—
X
X
Pressure control solenoid valve B (sec-
ondary pressure solenoid valve) output
current
SOLMON1 (A)
X
X
X
Torque converter clutch solenoid valve
monitor current
CVT-74
TROUBLE DIAGNOSIS
Revision; 2004 April
2003 Murano
SOLMON2 (A)
X
X
X
Pressure control solenoid valve A (line
pressure solenoid valve) monitor cur-
rent
SOLMON3 (A)
X
X
X
Pressure control solenoid valve B (sec-
ondary pressure solenoid valve) moni-
tor current
INH SW3M (ON-OFF display)
X
—
X
PNP switch 3 ON-OFF status monitor
INH SW4 (ON-OFF display)
X
—
X
PNP switch 4 ON-OFF status
INH SW3 (ON-OFF display)
X
—
X
PNP switch 3 ON-OFF status
INH SW2 (ON-OFF display)
X
—
X
PNP switch 2 ON-OFF status
INH SW1 (ON-OFF display)
X
—
X
PNP switch 1 ON-OFF status
BRAKESW (ON-OFF display)
X
X
X
Stop lamp switch
FULL SW (ON-OFF display)
X
X
X
Signal input with CAN communications
IDLE SW (ON-OFF display)
X
X
X
SECOND POS SW (ON-OFF display)
X
X
X
STRDWNSW (ON-OFF display)
X
—
X
Not mounted but displayed.
STRUPSW (ON-OFF display)
X
—
X
DOWNLVR (ON-OFF display)
X
—
X
UPLVR (ON-OFF display)
X
—
X
NONMMODE (ON-OFF display)
X
—
X
MMODE (ON-OFF display)
X
—
X
INDLRNG (ON-OFF display)
—
—
X
“L” position indicator output
INDDRNG (ON-OFF display)
—
—
X
“D” position indicator output
INDNRNG (ON-OFF display)
—
—
X
“N” position indicator output
INDRRNG (ON-OFF display)
—
—
X
“R” position indicator output
INDPRNG (ON-OFF display)
—
—
X
“P” position indicator output
CVTLAMP (ON-OFF display)
—
—
X
SECOND POS IND (ON-OFF display)
—
—
X
MMODE IND (ON-OFF display)
—
—
X
Not mounted but displayed.
SMCOIL D (ON-OFF display)
—
—
X
Step motor coil “D” energizing status
SMCOIL C (ON-OFF display)
—
—
X
Step motor coil “C” energizing status
SMCOIL B (ON-OFF display)
—
—
X
Step motor coil “B” energizing status
SMCOIL A (ON-OFF display)
—
—
X
Step motor coil “A” energizing status
LUSEL SOL OUT (ON-OFF display)
—
—
X
REV LAMP (ON-OFF display)
—
X
X
STRTR RLY OUT (ON-OFF display)
—
—
X
PNP relay
LU SEL SOL MON (ON-OFF display)
—
—
X
STRTR RLY MON (ON-OFF display)
—
—
X
PNP relay
VDC ON (ON-OFF display)
X
—
X
TCS ON (ON-OFF display)
X
—
X
ABS ON (ON-OFF display)
X
—
X
ACC ON (ON-OFF display)
X
—
X
Not mounted but displayed.
Monitored item (Unit)
Monitor Item Selection
Remarks
ECU INPUT
SIGNALS
MAIN SIG-
NALS
SELEC-
TION FROM
MENU
TROUBLE DIAGNOSIS
CVT-75
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Revision; 2004 April
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Diagnostic Procedure Without CONSULT-II
ACS001TE
OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)
Refer to
EC-138, "Generic Scan Tool (GST) Function"
RENGE
—
X
X
Indicates position is recognized by
TCM. Indicates a specific value required
for control when fail-safe function is
activated.
M GEAR POS
—
X
X
Not mounted but displayed.
Voltage (V)
—
—
X
Displays the value measured by the
voltage probe.
Frequency (Hz)
—
—
X
The value measured by the pulse probe
is displayed.
DUTY·HI (high) (%)
—
—
X
DUTY·LOW (low) (%)
—
—
X
PLS WIDTH·HI (ms)
—
—
X
PLS WIDTH·LOW (ms)
—
—
X
Monitored item (Unit)
Monitor Item Selection
Remarks
ECU INPUT
SIGNALS
MAIN SIG-
NALS
SELEC-
TION FROM
MENU
CVT-76
DTC U1000 CAN COMMUNICATION LINE
Revision; 2004 April
2003 Murano
DTC U1000 CAN COMMUNICATION LINE
PFP:23710
Description
ACS001TF
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 malfunction detection ability.
Many electronic 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 con-
nected 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.
On Board Diagnosis Logic
ACS001TG
●
This is an OBD-II self-diagnostic item.
●
Diagnostic trouble code “CAN COMM CIRCUIT” with CONSULT-II or U1000 without CONSULT-II is
detected when TCM cannot communicate to other control units.
Possible Cause
ACS001TH
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation Procedure
ACS001TI
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3.
Start engine and wait for at least 6 seconds.
4.
If DTC is detected, go to
CVT-78, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II”.
SCIA2272E
DTC U1000 CAN COMMUNICATION LINE
CVT-77
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Wiring Diagram — CVT — CAN
ACS001TJ
TCWA0147E
CVT-78
DTC U1000 CAN COMMUNICATION LINE
Revision; 2004 April
2003 Murano
TCM terminals and data are reference values.
Diagnostic Procedure
ACS001TK
1.
CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II
1.
Turn ignition switch “ON” and start engine.
2.
Select “SELF-DIAG RESULTS” mode for “TRANSMISSION”
with CONSULT-II.
Is any malfunction of the “CAN COMM CIRCUIT” indicated?
YES
>> Print out CONSULT-II screen, GO TO LAN section.
Refer to
LAN-10, "Precautions When Using CONSULT-
NO
>> INSPECTION END
Terminal No.
Wire color
Item
Condition
Data (Approx.)
5
L
CAN H
–
–
6
Y
CAN L
–
–
SCIA2818E
DTC P0615 START SIGNAL CIRCUIT
CVT-79
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CVT
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DTC P0615 START SIGNAL CIRCUIT
PFP:25230
Description
ACS001TL
●
TCM controls park/neutral (PNP) relay (starter relay) in IPDM E/R.
●
TCM switches PNP relay “ON” at “P” or “N” position and allows to crank engine.
●
Then it prohibits cranking other than at “P” or “N” position.
On Board Diagnosis Logic
ACS001TM
●
This is not an OBD-II self-diagnostic item.
●
Diagnostic trouble code “STARTER RELAY/CIRC” with CONSULT-II is detected when park/neutral (PNP)
relay (starter relay) switched “ON” other than at “P” or “N” position. (Or when switched “OFF” at “P” or “N”
position).
Possible Cause
ACS001TN
●
Harness or connectors
[The park/neutral position (PNP) relay (starter relay) and TCM circuit is open or shorted.]
●
Park/neutral position (PNP) relay (starter relay)
DTC Confirmation Procedure
ACS001TO
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3.
Start engine.
4.
Drive vehicle for at least 2 consecutive seconds.
5.
CVT-81, "Diagnostic Procedure"
.
SCIA2272E
CVT-80
DTC P0615 START SIGNAL CIRCUIT
Revision; 2004 April
2003 Murano
Wiring Diagram — CVT — STSIG
ACS001TP
TCWA0160E
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