Nissan Murano Z50 (2005 year). Manual — part 62

TROUBLE DIAGNOSIS

CVT-69

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*1: Refer to

CVT-32, "Malfunction Indicator Lamp (MIL)"

.

How to Erase Self-diagnostic Results

1.

Perform “CONSULT-II SETTING PROCEDURE” Refer to

CVT-64, "CONSULT-II SETTING PROCE-

DURE"

.

2.

Touch “SELF-DIAG RESULTS”.

3.

Touch “ERASE”. (The self-diagnostic results will be erased.)

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

CVT-169

L/PRESS CON-
TROL

●

TCM detects the unexpected line pressure.

P1745

—

CVT-174

STEP MOTR
CIRC

●

Each coil of the step motor is not energized properly due
to an open or a short.

P1777

P1777

CVT-175

STEP MOTR/FNC

●

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

P1778

P1778

CVT-179

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-

diagnosis

OBD-II (DTC)

Reference

page

“TRANS-

MISSION”
with CON-

SULT-II

MIL indicator

lamp*1,

“ENGINE” with

CONSULT-II or

GST

BCIA0031E

SCIA4614E

CVT-70

TROUBLE DIAGNOSIS

Revision: 2005 August

2005 Murano

DATA MONITOR MODE
Operation Procedure

1.

Perform “CONSULT-II SETTING PROCEDURE” Refer to

CVT-

64, "CONSULT-II SETTING PROCEDURE"

.

2.

Touch “DATA MONITOR”.

NOTE:
When malfunction is detected, CONSULT-II performs
“REAL-TIME DIAGNOSIS”. Also, any malfunction detected
while in this mode will be displayed at real time.

Display Items List

X: Standard, —: Not applicable,

: Option

BCIA0031E

Monitored item (Unit)

Monitor item selection

Remarks

ECU

INPUT

SIGNALS

MAIN SIG-

NALS

SELEC-

TION

FROM
MENU

VSP SENSOR (km/h)

X

—

Output speed sensor (secondary speed sensor).

ESTM VSP SIG (km/h)

X

—

PRI SPEED SEN (rpm)

X

—

ENG SPEED SIG (rpm)

X

—

SEC HYDR SEN (V)

X

—

PRI HYDR SEN (V)

X

—

ATF TEMP SEN (V)

X

—

CVT fluid temperature sensor

VIGN SEN (V)

X

—

VEHICLE SPEED (km/h)

—

X

Vehicle speed recognized by the TCM.

PRI SPEED (rpm)

—

X

Primary pulley speed.

SEC SPEED (rpm)

—

—

Secondary pulley speed.

ENG SPEED (rpm)

—

X

SLIP REV (rpm)

—

X

Difference between engine speed and primary
pulley speed

GEAR RATIO

—

X

G SPEED (G)

—

—

ACC PEDAL OPEN (0.0/8)

X

X

Degree of opening for accelerator recognized by
the TCM
For fail-safe operation, the specific value used
for control is displayed.

TRQ RTO

—

—

SEC PRESS (MPa)

—

X

PRI PRESS (MPa)

—

X

ATF TEMP

—

X

DSR REV (rpm)

—

—

DGEAR RATIO

—

—

TROUBLE DIAGNOSIS

CVT-71

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DSTM STEP (step)

—

—

STM STEP (step)

—

X

LU PRS (MPa)

—

—

LINE PRS (MPa)

—

—

TGT SEC PRESS (MPa)

—

—

ISOLT1 (A)

—

X

Torque converter clutch solenoid valve output
current

ISOLT2 (A)

—

X

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

ISOLT3 (A)

—

X

Pressure control solenoid valve B (secondary
pressure solenoid valve) output current

SOLMON1 (A)

X

X

Torque converter clutch solenoid valve monitor
current

SOLMON2 (A)

X

X

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

SOLMON3 (A)

X

X

Pressure control solenoid valve B (secondary
pressure solenoid valve) monitor current

INH SW3M (ON/OFF)

X

—

PNP switch 3 ON-OFF status monitor

INH SW4 (ON/OFF)

X

—

PNP switch 4 ON-OFF status

INH SW3 (ON/OFF)

X

—

PNP switch 3 ON-OFF status

INH SW2 (ON/OFF)

X

—

PNP switch 2 ON-OFF status

INH SW1 (ON/OFF)

X

—

PNP switch 1 ON-OFF status

BRAKE SW (ON/OFF)

X

X

Stop lamp switch

FULL SW (ON/OFF)

X

X

Signal input with CAN communications

IDLE SW (ON/OFF)

X

X

SPORT MODE SW (ON/OFF)

X

X

Second position switch

STRDWNSW (ON/OFF)

X

—

Not mounted but displayed.

STRUPSW (ON/OFF)

X

—

DOWNLVR (ON/OFF)

X

—

UPLVR (ON/OFF)

X

—

NON MMODE (ON/OFF)

X

—

MMODE (ON/OFF)

X

—

INDLRNG (ON/OFF)

—

—

“L” position indicator output

INDDRNG (ON/OFF)

—

—

“D” position indicator output

INDNRNG (ON/OFF)

—

—

“N” position indicator output

INDRRNG (ON/OFF)

—

—

“R” position indicator output

INDPRNG (ON/OFF)

—

—

“P” position indicator output

CVTLAMP (ON/OFF)

—

—

Monitored item (Unit)

Monitor item selection

Remarks

ECU

INPUT

SIGNALS

MAIN SIG-

NALS

SELEC-

TION

FROM
MENU

CVT-72

TROUBLE DIAGNOSIS

Revision: 2005 August

2005 Murano

CAN DIAGNOSTIC SUPPORT MONITOR MODE
Operation Procedure

1.

Perform “CONSULT-II SETTING PROCEDURE” Refer to

CVT-

64, "CONSULT-II SETTING PROCEDURE"

.

2.

Touch “CAN DAIG SUPPORT MNTR”. Refer to

LAN-19, "CAN

Diagnostic Support Monitor"

.

SPORT MODE IND (ON/OFF)

—

—

MMODE IND (ON/OFF)

—

—

SMCOIL D (ON/OFF)

—

—

Step motor coil “D” energizing status

SMCOIL C (ON/OFF)

—

—

Step motor coil “C” energizing status

SMCOIL B (ON/OFF)

—

—

Step motor coil “B” energizing status

SMCOIL A (ON/OFF)

—

—

Step motor coil “A” energizing status

LUSEL SOL OUT (ON/OFF)

—

—

REV LAMP (ON/OFF)

—

X

STRTR RLY OUT (ON/OFF)

—

—

Starter relay

LUSEL SOL MON (ON/OFF)

—

—

STRTR RLY MON (ON/OFF)

—

—

Starter relay

VDC ON (ON/OFF)

X

—

TCS ON (ON/OFF)

X

—

ABS ON (ON/OFF)

X

—

ACC ON (ON/OFF)

X

—

Not mounted but displayed.

RANGE

—

X

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

M GEAR POS

—

X

Voltage (V)

—

—

Displays the value measured by the voltage
probe.

Frequency (Hz)

—

—

The value measured by the pulse probe is dis-
played.

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
MENU

BCIA0031E

TROUBLE DIAGNOSIS

CVT-73

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CVT

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Diagnostic Procedure Without CONSULT-II

ACS007X5

OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)

Refer to

EC-139, "Generic Scan Tool (GST) Function"

.

CVT-74

DTC U1000 CAN COMMUNICATION LINE

Revision: 2005 August

2005 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 “U1000 CAN COMM CIRCUIT” with 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-76, "Diagnostic Procedure"

.

WITH GST

Follow the procedure “WITH CONSULT-II”.

BCIA0031E

DTC U1000 CAN COMMUNICATION LINE

CVT-75

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Revision: 2005 August

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Wiring Diagram — CVT — CAN

ACS001TJ

TCWA0147E

CVT-76

DTC U1000 CAN COMMUNICATION LINE

Revision: 2005 August

2005 Murano

TCM terminal data are reference values, measured between each terminal and ground.

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 “U1000 CAN COMM CIRCUIT” indicated?

YES

>> Print out CONSULT-II screen, go to LAN section. Refer

to

LAN-5, "Precautions When Using CONSULT-II"

.

NO

>> INSPECTION END

Terminal

Wire

color

Item

Condition

Data (Approx.)

5

L

CAN H

–

–

6

Y

CAN L

–

–

SCIA5982E

DTC P0615 START SIGNAL CIRCUIT

CVT-77

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CVT

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DTC P0615 START SIGNAL CIRCUIT

PFP:25230

Description

ACS001TL

●

TCM controls starter relay in IPDM E/R.

●

TCM switches starter relay ON at “P” or “N” position and allows to crank engine.

●

Then it prohibits cranking other than at “P” or “N” position.

CONSULT-II Reference Value

ACS004Q6

Remarks: Specification data are reference values.

On Board Diagnosis Logic

ACS001TM

●

This is not an OBD-II self-diagnostic item.

●

Diagnostic trouble code “P0615 STARTER RELAY/CIRC” with CONSULT-II is detected when 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
(Starter relay and TCM circuit is open or shorted.)

●

Starter relay

DTC Confirmation Procedure

ACS001TO

CAUTION:

Always drive vehicle at a safe speed.

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.

If DTC is detected, go to

CVT-79, "Diagnostic Procedure"

.

Monitor item

Condition

Display value

STRTR RLY OUT

Selector lever in “P”, “N” position

ON

Selector lever in other position

OFF

STRTR RLY MON

Selector lever in “P”, “N” position

ON

Selector lever in other position

OFF

BCIA0031E

CVT-78

DTC P0615 START SIGNAL CIRCUIT

Revision: 2005 August

2005 Murano

Wiring Diagram — CVT — STSIG

ACS001TP

TCWA0245E

DTC P0615 START SIGNAL CIRCUIT

CVT-79

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TCM terminal data are reference values, measured between each terminal and ground.

Diagnostic Procedure

ACS001TQ

1.

CHECK STARTER RELAY

With CONSULT-II

1.

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

2.

Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “TRANSMISSION” with CONSULT-II and check monitor
“STRTR RLY OUT”, “STRTR RLY MON”(PNP relay) ON/OFF.

Without CONSULT-II

1.

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

2.

Check voltage between the TCM connector terminal and
ground.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2.

DETECT MALFUNCTIONING ITEM

Check the following:

●

Starter relay. Refer to

PG-68, "STANDARDIZED RELAY"

.

●

Open or short-circuit in the harness between TCM and the starter relay. Refer to

CVT-78, "Wiring Diagram

— CVT — STSIG"

.

●

Ground circuit for the starter relay. Refer to

SC-10, "Wiring Diagram — START —"

.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

Terminal

Wire

color

Item

Condition

Data (Approx.)

24

G/O

Starter relay

Selector lever in “N”, “P” position.

Battery voltage

Selector lever in other position.

0V

Monitor item

Condition

Display value

STRTR RLY OUT

Selector lever in “P”, “N”
position

ON

Selector lever in other
position

OFF

STRTR RLY MON

Selector lever in “P”, “N”
position

ON

Selector lever in other
position

OFF

Terminal

Wire color

Item

Condition

Data (Approx.)

24

G/O

Starter
relay

Selector
lever in “N”,
“P” position.

Battery voltage

Selector
lever in other
position.

0V

SCIA2274E

SCIA2022E

CVT-80

DTC P0615 START SIGNAL CIRCUIT

Revision: 2005 August

2005 Murano

3.

CHECK DTC

Perform “DTC Confirmation Procedure”. Refer to

CVT-77, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 4.

4.

CHECK TCM

1.

Check TCM input/output signal. Refer to

CVT-58, "TCM Input/Output Signal Reference Values"

.

2.

If NG, re-check TCM pin terminals for damage or loose connection with harness connector.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.

DTC P0703 STOP LAMP SWITCH CIRCUIT

CVT-81

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DTC P0703 STOP LAMP SWITCH CIRCUIT

PFP:25320

Description

ACS002SJ

ON, OFF status of the stop lamp switch is sent via the CAN communication from the unified meter and A/C
amp to TCM using the signal.

CONSULT-II Reference Value

ACS004Y3

Remarks: Specification data are reference values.

On Board Diagnosis Logic

ACS002SK

●

This is not an OBD-II self-diagnostic item.

●

Diagnostic trouble code “P0703 BRAKE SW/CIRC” with CONSULT-II is detected when the stop lamp
switch does not switch to ON and OFF.

–

The stop lamp switch does not switch to ON, OFF.

Possible Cause

ACS002SL

●

Harness or connectors
(Stop lamp switch, and unified meter and A/C amp circuit are open or shorted.)
(CAN communication line is open or shorted.)

●

Stop lamp switch

DTC Confirmation Procedure

ACS002SM

CAUTION:

Always drive vehicle at a safe speed.

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.

Start vehicle for at least 3 consecutive seconds.

5.

If DTC is detected, go to

CVT-82, "Diagnostic Procedure"

.

Monitor item

Condition

Display value

BRAKE SW

Depressed brake pedal

ON

Released brake pedal

OFF

BCIA0031E

CVT-82

DTC P0703 STOP LAMP SWITCH CIRCUIT

Revision: 2005 August

2005 Murano

Diagnostic Procedure

ACS002IT

1.

CHECK CAN COMMUNICATION LINE

Perform the self-diagnosis check. Refer to

CVT-67, "SELF-DIAGNOSTIC RESULT MODE"

.

Is any malfunction of the “U1000 CAN COMM CIRCUIT” indicated?

YES

>> Check CAN communication line. Refer to

CVT-74, "DTC U1000 CAN COMMUNICATION LINE"

.

NO

>> GO TO 2.

2.

CHECK STOP LAMP SWITCH CIRCUIT

With CONSULT-II

1.

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

2.

Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.

3.

Read out ON/OFF switching action of the “BRAKE SW”.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 3.

3.

CHECK STOP LAMP SWITCH

Check continuity between stop lamp switch harness connector E116 terminals 1 and 2. Refer to

CVT-186,

"Wiring Diagram — CVT — NONDTC"

.

Check stop lamp switch after adjusting brake pedal — refer to

BR-6, "BRAKE PEDAL"

.

OK or NG

OK

>> Check the following. If NG, repair or replace damaged parts.

●

Harness for short or open between battery and stop lamp switch.

●

Harness for short or open between stop lamp switch and unified meter and A/C amp.

NG

>> Repair or replace the stop lamp switch.

Monitor item

Condition

Display value

BRAKE SW

Depressed brake pedal

ON

Released brake pedal

OFF

SCIA2275E

SCIA3700E

DTC P0705 PARK/NEUTRAL POSITION SWITCH

CVT-83

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DTC P0705 PARK/NEUTRAL POSITION SWITCH

PFP:32006

Description

ACS001TR

●

The park/neutral position (PNP) switch includes 4 transmission position switches.

●

TCM judges the selector lever position by the PNP switch signal.

*: Without manual mode

CONSULT-II Reference Value

ACS004Y4

Remarks: Specification data are reference values.

*: Without manual mode

On Board Diagnosis Logic

ACS001TS

●

This is an OBD-II self-diagnostic item.

●

Diagnostic trouble code “P0705 PNP SW/CIRC” with CONSULT-II is detected under the following condi-
tions.

–

When TCM does not receive the correct voltage signal from the PNP switches 1, 2, 3 and 4 based on the
gear position.

–

When the signal from monitor terminal of PNP switch 3 is different from PNP switch 3.

Possible Cause

ACS001TT

●

Harness or connectors
(PNP switches 1, 2, 3, 4 and TCM circuit is open or shorted.)

●

PNP switches 1, 2, 3, 4

●

PNP switch 3 monitor terminal is open or shorted

DTC Confirmation Procedure

ACS001TU

CAUTION:

Always drive vehicle at a safe speed.

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.

Shift position

PNP switch 1

PNP switch 2

PNP switch 3

PNP switch 4

PNP switch 3 (monitor)

P

OFF

OFF

OFF

OFF

OFF

R

ON

OFF

OFF

ON

OFF

N

ON

ON

OFF

OFF

OFF

D · S*

ON

ON

ON

ON

ON

L*

OFF

ON

ON

OFF

ON

Monitor item

Condition

Display value

INH SW3M

Selector lever in “D”, “S”*, “L”* position

ON

Selector lever in “P”, “R”, “N” position

OFF

INH SW4

Selector lever in “R”, “D”, “S”* position

ON

Selector lever in “P”, “N”, “L”* position

OFF

INH SW3

Selector lever in “D”, “S”*, “L”* position

ON

Selector lever in “P”, “R”, “N” position

OFF

INH SW2

Selector lever in “N”, “D”, “S”*, “L”* position

ON

Selector lever in “P”, “R” position

OFF

INH SW1

Selector lever in “R”, “N”, “D”, “S”* position

ON

Selector lever in “P”, “L”* position

OFF

CVT-84

DTC P0705 PARK/NEUTRAL POSITION SWITCH

Revision: 2005 August

2005 Murano

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 and maintain the following conditions for at least 2
consecutive seconds.
VHCL SPEED SE: More than 10 km/h (6 MPH)
ENG SPEED: More than 450 rpm
ACC PEDAL OPEN: More than 1/8

5.

If DTC is detected, go to

CVT-87, "Diagnostic Procedure"

.

WITH GST

Follow the procedure “WITH CONSULT-II”.

BCIA0031E