Content .. 62 63 64 65 ..

Nissan Murano Z50 (2003 year). Manual - part 64

TROUBLE DIAGNOSIS

CVT-65

CVT

Revision; 2004 April

2003 Murano

V/O

Transmission fluid
pressure sensor B
(primary pressure
sensor)

N position idle

0.7 - 1.2V

W/R

Sensor ground

—

L/O

Sensor power

—

4.5 - 5.5V

CVT fluid temper-
ature sensor

When CVT fluid temperature is 20

C (68

2.0V

When CVT fluid temperature is 80

C (176

1.0V

Ground

—

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.

Turn ignition switch “OFF”.

Connect CONSULT-II and CONSULT-II CONVERSTER to data
link connector, which is located in lower instrument panel on
driver side.

Turn ignition switch “ON”.

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.

CVT-66

Self-diagnostic results

Self-diagnostic results can be read and erased quickly.

CVT-71

Data monitor

Input/Output data in the ECM can be read.

CVT-73

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

CVT

Revision; 2004 April

2003 Murano

Touch “TRANSMISSION”.

Touch “WORK SUPPORT”.

Touch “ENGINE BRAKE ADJUSTMENT”.

Touch “START”.

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”.

Connect CONSULT-II and CONSULT-II CONVERSTER to data
link connector, which is located in lower instrument panel on
driver side.

Turn ignition switch “ON”.

Touch “START (NISSAN BASED VHCL)”.

Touch “TRANSMISSION”.

Touch “WORK SUPPORT”.

PBIB0196E

SAIA0450E

SCIA2272E

SCIA5492E

TROUBLE DIAGNOSIS

CVT-69

CVT

Revision; 2004 April

2003 Murano

Touch “CONFORM CVTF DETERIORTN”.

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”.

Turn ignition switch “OFF”.

Connect CONSULT-II and CONSULT-II CONVERSTER to data
link connector, which is located in lower instrument panel on
driver side.

Turn ignition switch “ON”.

Touch “START (NISSAN BASED VHCL)”.

Touch “ENGINE” for OBD-II detected items or touch “TRANS-
MISSION” for TCM self-diagnosis.
If “TRANSMISSION” or “ENGINE” is not indicated, go to

GI-38,

"CONSULT-II Data Link Connector (DLC) Circuit"

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

CVT

Revision; 2004 April

2003 Murano

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

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

ATF TEMP SEN/
CIRC

●

During running, the CVT fluid temperature sensor signal voltage is
excessively high or low

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

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

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

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

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

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

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

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

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

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

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

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

STEP MOTOR/
FNCTN

●

There is a great difference between the number of steps for the
stepping motor and for the actual gear ratio.

P1778

NO DTC IS
DETECTED: FUR-
THER TESTING
MAY BE REQUIRED

●

No NG item has been detected.

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

CVT

Revision; 2004 April

2003 Murano

Data Monitor Mode (CVT)

X: Standard, —: Not applicable

Monitored item (Unit)

Monitor Item Selection

Remarks

ECU INPUT

SIGNALS

MAIN SIG-

NALS

SELEC-

TION FROM

VSP SENSOR (km/h)

—

Output speed sensor (secondary speed
sensor).

ESTM VSP SIG (km/h)

—

PRI SPEED SEN (rpm)

—

ENG SPEED SIG (rpm)

—

SEC HYDR SEN (V)

—

PRI HYDR SEN (V)

—

ATF TEMP SEN (V)

—

VVIGN SEN (V)

—

VEHICLE SPEED (km/h)

—

Vehicle speed recognized by the TCM.

PRI SPEED (rpm)

—

Primary pulley speed.

SEC SPEED (rpm)

—

Secondary pulley speed.

ENG SPEED (rpm)

—

SLIP REV (rpm)

—

Difference between engine speed and
primary pulley speed

GEAR RATIO

—

G SPEED (G)

—

ACC PEDAL OPEN (0.0/8)

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)

—

VENG TRQ (N-m)

—

PRI TRQ (N-m)

—

TRQ RTO

—

SEC PRESS (MPa)

—

PRI PRESS (MPa)

—

ATF TEMP

—

DSR REV (rpm)

—

DGEAR RATIO

—

DSTM STEP (step)

—

STM STEP (step)

—

LU PRS (MPa)

—

LINE PRS (MPa)

—

SEC PRS (MPa)

—

ISOLT1 (A)

—

Torque converter clutch solenoid valve
output current

ISOLT2 (A)

—

Pressure control solenoid valve A (line
pressure solenoid valve) output current

ISOLT3 (A)

—

Pressure control solenoid valve B (sec-
ondary pressure solenoid valve) output
current

SOLMON1 (A)

Torque converter clutch solenoid valve
monitor current

CVT-74

TROUBLE DIAGNOSIS

Revision; 2004 April

2003 Murano

SOLMON2 (A)

Pressure control solenoid valve A (line
pressure solenoid valve) monitor cur-
rent

SOLMON3 (A)

Pressure control solenoid valve B (sec-
ondary pressure solenoid valve) moni-
tor current

INH SW3M (ON-OFF display)

—

PNP switch 3 ON-OFF status monitor

INH SW4 (ON-OFF display)

—

PNP switch 4 ON-OFF status

INH SW3 (ON-OFF display)

—

PNP switch 3 ON-OFF status

INH SW2 (ON-OFF display)

—

PNP switch 2 ON-OFF status

INH SW1 (ON-OFF display)

—

PNP switch 1 ON-OFF status

BRAKESW (ON-OFF display)

Stop lamp switch

FULL SW (ON-OFF display)

Signal input with CAN communications

IDLE SW (ON-OFF display)

SECOND POS SW (ON-OFF display)

STRDWNSW (ON-OFF display)

—

Not mounted but displayed.

STRUPSW (ON-OFF display)

—

DOWNLVR (ON-OFF display)

—

UPLVR (ON-OFF display)

—

NONMMODE (ON-OFF display)

—

MMODE (ON-OFF display)

—

INDLRNG (ON-OFF display)

—

“L” position indicator output

INDDRNG (ON-OFF display)

—

“D” position indicator output

INDNRNG (ON-OFF display)

—

“N” position indicator output

INDRRNG (ON-OFF display)

—

“R” position indicator output

INDPRNG (ON-OFF display)

—

“P” position indicator output

CVTLAMP (ON-OFF display)

—

SECOND POS IND (ON-OFF display)

—

MMODE IND (ON-OFF display)

—

Not mounted but displayed.

SMCOIL D (ON-OFF display)

—

Step motor coil “D” energizing status

SMCOIL C (ON-OFF display)

—

Step motor coil “C” energizing status

SMCOIL B (ON-OFF display)

—

Step motor coil “B” energizing status

SMCOIL A (ON-OFF display)

—

Step motor coil “A” energizing status

LUSEL SOL OUT (ON-OFF display)

—

REV LAMP (ON-OFF display)

—

STRTR RLY OUT (ON-OFF display)

—

PNP relay

LU SEL SOL MON (ON-OFF display)

—

STRTR RLY MON (ON-OFF display)

—

PNP relay

VDC ON (ON-OFF display)

—

TCS ON (ON-OFF display)

—

ABS ON (ON-OFF display)

—

ACC ON (ON-OFF display)

—

Not mounted but displayed.

Monitored item (Unit)

Monitor Item Selection

Remarks

ECU INPUT

SIGNALS

MAIN SIG-

NALS

SELEC-

TION FROM

TROUBLE DIAGNOSIS

CVT-75

CVT

Revision; 2004 April

2003 Murano

Diagnostic Procedure Without CONSULT-II

ACS001TE

OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)

Refer to

EC-138, "Generic Scan Tool (GST) Function"

RENGE

—

Indicates position is recognized by
TCM. Indicates a specific value required
for control when fail-safe function is
activated.

M GEAR POS

—

Not mounted but displayed.

Voltage (V)

—

Displays the value measured by the
voltage probe.

Frequency (Hz)

—

The value measured by the pulse probe
is displayed.

DUTY·HI (high) (%)

—

DUTY·LOW (low) (%)

—

PLS WIDTH·HI (ms)

—

PLS WIDTH·LOW (ms)

—

Monitored item (Unit)

Monitor Item Selection

Remarks

ECU INPUT

SIGNALS

MAIN SIG-

NALS

SELEC-

TION FROM

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

Turn ignition switch “ON”. (Do not start engine.)

Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.

Start engine and wait for at least 6 seconds.

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

CVT

Revision; 2004 April

2003 Murano

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

CHECK CAN COMMUNICATION CIRCUIT

With CONSULT-II

Turn ignition switch “ON” and start engine.

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-

II"

>> INSPECTION END

Terminal No.

Wire color

Item

Condition

Data (Approx.)

CAN H

–

CAN L

–

SCIA2818E

DTC P0615 START SIGNAL CIRCUIT

CVT-79

CVT

Revision; 2004 April

2003 Murano

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

WITH CONSULT-II

Turn ignition switch “ON”. (Do not start engine.)

Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.

Start engine.

Drive vehicle for at least 2 consecutive seconds.

If DTC is detected, go to

CVT-81, "Diagnostic Procedure"

SCIA2272E

CVT-80

DTC P0615 START SIGNAL CIRCUIT

Revision; 2004 April

2003 Murano

Wiring Diagram — CVT — STSIG

ACS001TP

TCWA0160E

Content .. 62 63 64 65 ..