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Nissan Murano Z51 (2008 year). Manual - part 382

TCM

TM-115

< ECU DIAGNOSIS >

[CVT: RE0F09B]

INH SW3

Selector lever in “D” and “L” positions

Selector lever in “P”, “R” and “N” positions

Off

INH SW2

Selector lever in “N”, “D” and “L” positions

Selector lever in “P” and “R” positions

Off

INH SW1

Selector lever in “R”, “N” and “D” positions

Selector lever in “P” and “L” positions

Off

BRAKE SW

Depressed brake pedal

Released brake pedal

Off

FULL SW

Fully depressed accelerator pedal

Released accelerator pedal

Off

IDLE SW

Released accelerator pedal

Fully depressed accelerator pedal

Off

SPORT MODE SW

While pushing overdrive control switch

Other conditions

Off

INDLRNG

Selector lever in “L” position

Selector lever in other positions

Off

INDDRNG

Selector lever in “D” position

Selector lever in other positions

Off

INDNRNG

Selector lever in “N” position

Selector lever in other positions

Off

INDRRNG

Selector lever in “R” position

Selector lever in other positions

Off

INDPRNG

Selector lever in “P” position

Selector lever in other positions

Off

SPORT MODE IND

When overdrive OFF condition

Other conditions

Off

SMCOIL D

During driving

Changes ON

⇔

OFF.

SMCOIL C

During driving

Changes ON

⇔

OFF.

SMCOIL B

During driving

Changes ON

⇔

OFF.

SMCOIL A

During driving

Changes ON

⇔

OFF.

LUSEL SOL OUT

Selector lever in “P” and “N” positions

Wait at least for 5 seconds with the selector lever
in “R”, “D” and “L” positions

Off

LUSEL SOL MON

Selector lever in “P” and “N” positions

Wait at least for 5 seconds with the selector lever
in “R”, “D” and “L” positions

Off

STRTR RLY OUT

Selector lever in “P” and “N” positions

Selector lever in other positions

Off

STRTR RLY MON

Selector lever in “P” and “N” positions

Selector lever in other positions

Off

VDC ON

VDC operate

Other conditions

Off

TCS ON

TCS operate

Other conditions

Off

Item name

Condition

Display value (Approx.)

Revision: 2008 October

2009 Murano

TM-116

< ECU DIAGNOSIS >

[CVT: RE0F09B]

TCM

* Means CVT fluid temperature. Actual oil temperature

C (

F) cannot be checked unless a numeric value is converted. Refer to

TM-147,

"ATFTEMP COUNT Conversion Table"

TERMINAL LAYOUT

PHYSICAL VALUES

ABS ON

ABS operate

Other conditions

Off

RANGE

Selector lever in “N” and “P” positions

N·P

Selector lever in “R” position

Selector lever in “D” position

Selector lever in “L” position

Item name

Condition

Display value (Approx.)

SCIA6679J

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

−

Signal name

Input/Output

(P/B)

Ground

PNP switch 2

Input

Ignition switch ON

Selector lever in “N”, “D” and “L”
positions

0 V

Selector lever in other positions

10.0 V –

Battery
voltage

(P/L)

Ground

PNP switch 3

Input

Selector lever in “D” and “L” po-
sitions

0 V

Selector lever in other positions

10.0 V –

Battery
voltage

(G/O)

Ground

PNP switch 4

Input

Selector lever in “R” and “D” po-
sitions

0 V

Selector lever in other positions

10.0 V –

Battery
voltage

(GR)

Ground

PNP switch 3 (monitor)

Input

Selector lever in “D” and “L” po-
sitions

0 V

Selector lever in other positions

10.0 V –

Battery
voltage

(B)

Ground

Output

Always

0 V

(O)

Ground

K-LINE

Input/Output

—

(W)

Ground

Sensor ground

Output

Always

0 V

Revision: 2008 October

2009 Murano

TCM

TM-117

< ECU DIAGNOSIS >

[CVT: RE0F09B]

(G/W)

—

CLOCK (SEL2)

—

(L/R)

—

CHIP SELECT (SEL1)

—

(BR/R)

—

DATA I/O (SEL3)

—

(BR/W)

Ground

PNP switch 1

Input

Ignition switch ON

Selector lever in “R”, “N” and “D”
positions

0 V

Selector lever in other positions

Battery
voltage

(V)

Ground

CVT fluid temperature sen-
sor

Input

Ignition switch ON

When CVT fluid temperature is
20

C (68

1.9 – 2.2

When CVT fluid temperature is
80

C (176

0.8 – 1.1

(R/W)

Ground

Transmission fluid pres-
sure sensor B (Primary
pressure sensor)

Input

“N” position idle

0.5 – 0.8

(V/W)

Ground

Transmission fluid pres-
sure sensor A (Secondary
pressure sensor)

Input

1.0 – 1.5

(G/B)

Ground

Reverse lamp relay

Output

Ignition switch ON

Selector lever in “R” position

0 V

Selector lever in other positions

Battery
voltage

(R/B)

Ground

Starter relay

Output

Ignition switch ON

Selector lever in “N” and “P” po-
sitions

Battery
voltage

Selector lever in other positions

0 V

(W/R)

Ground

Sensor ground

Output

Always

0 V

(L/O)

Ground

Sensor power

Output

Ignition switch ON

4.75 –

5.25 V

Ignition switch OFF

0 V

(R/G)

Ground

Step motor D

Output

Within 2 seconds after ignition switch ON, the time
measurement by using the pulse width measurement

function (Hi level) of CONSULT-III.

CAUTION:

Connect the diagnosis data link cable to the vehicle
diagnosis connector.

10.0

msec

(R)

Ground

Step motor C

Output

30.0

msec

(O/B)

Ground

Step motor B

Output

10.0

msec

(G/R)

Ground

Step motor A

Output

30.0

msec

(P)

—

CAN-L

Input/Output

—

(L)

—

CAN-H

Input/Output

—

(LG)

Ground

Input speed sensor (Prima-
ry speed sensor)

Input

When driving [“L” position, 20 km/h (12 MPH)]

680 Hz

(LG/R)

Ground

Output speed sensor (Sec-
ondary speed sensor)

Input

When driving [“D” position, 20 km/h (12 MPH)]

350 Hz

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

−

Signal name

Input/Output

Revision: 2008 October

2009 Murano

TM-118

< ECU DIAGNOSIS >

[CVT: RE0F09B]

TCM

*1: This is applied to up to VIN: JN8AZ18U*9W100000, JN8AZ18W*9W200000 (EXCEPT FOR MEXICO), JN8AZ18U*9W710000,
JN8AZ18W*9W810000 (FOR MEXICO)

*2: A circuit tester cannot be used to test this item.

Wiring Diagram - CVT CONTROL SYSTEM -

INFOID:0000000003306131

Up to VIN: JN8AZ18U*9W100000, JN8AZ18W*9W200000 (EXCEPT FOR MEXICO),

(V/R)

Ground

Lock-up select solenoid
valve

Output

Ignition switch ON

Selector lever in “P” and “N” po-
sitions

Battery
voltage

Wait at least for 5 seconds with
the selector lever in “R”, “D” and
“L” positions

0 V

(L/W)

Ground

Torque converter clutch so-
lenoid valve

Output

When vehicle drive
in “D” position

When CVT performs lock-up

6.0 V

When CVT does not perform
lock-up

1.0 V

(W/B)

Ground

Pressure control solenoid
valve B (Secondary pres-
sure solenoid valve)

Output

“N” positions idle

Release your foot from the ac-
celerator pedal.

5.0 – 7.0

Press the accelerator pedal all
the way down

3.0 – 4.0

(R/Y)

Ground

Pressure control solenoid
valve A (Line pressure so-
lenoid valve)

Output

Release your foot from the ac-
celerator pedal

5.0 – 7.0

Press the accelerator pedal all
the way down

1.0 – 3.0

(B)

Ground

Output

Always

0 V

(L/R)

Ground

Power supply
(memory back-up)

Input

Always

Battery
voltage

(Y)

Ground

Power supply

Output

Ignition switch ON

Battery
voltage

Ignition switch OFF

0 V

(L/R)

Ground

Power supply
(memory back-up)

Input

Always

Battery
voltage

(Y)

Ground

Power supply

Output

Ignition switch ON

Battery
voltage

Ignition switch OFF

0 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

−

Signal name

Input/Output

Revision: 2008 October

2009 Murano

TCM

TM-119

< ECU DIAGNOSIS >

[CVT: RE0F09B]

JN8AZ18U*9W710000, JN8AZ18W*9W810000 (FOR MEXICO)

JCDWM0473GB

Revision: 2008 October

2009 Murano

TM-120

< ECU DIAGNOSIS >

[CVT: RE0F09B]

TCM

JCDWM0474GB

Revision: 2008 October

2009 Murano

TCM

TM-121

< ECU DIAGNOSIS >

[CVT: RE0F09B]

JCDWM0475GB

Revision: 2008 October

2009 Murano

TM-122

< ECU DIAGNOSIS >

[CVT: RE0F09B]

TCM

JCDWM0476GB

Revision: 2008 October

2009 Murano

TCM

TM-123

< ECU DIAGNOSIS >

[CVT: RE0F09B]

From VIN: JN8AZ18U*9W100001, JN8AZ18W*9W200001 (EXCEPT FOR MEXICO),

JCDWM0477GB

Revision: 2008 October

2009 Murano

TM-124

< ECU DIAGNOSIS >

[CVT: RE0F09B]

TCM

JN8AZ18U*9W710001, JN8AZ18W*9W810001 (FOR MEXICO)

JCDWM0478GB

Revision: 2008 October

2009 Murano

TCM

TM-125

< ECU DIAGNOSIS >

[CVT: RE0F09B]

JCDWM0479GB

Revision: 2008 October

2009 Murano

TM-126

< ECU DIAGNOSIS >

[CVT: RE0F09B]

TCM

JCDWM0480GB

Revision: 2008 October

2009 Murano

TCM

TM-127

< ECU DIAGNOSIS >

[CVT: RE0F09B]

JCDWM0481GB

Revision: 2008 October

2009 Murano

TM-128

< ECU DIAGNOSIS >

[CVT: RE0F09B]

TCM

Fail-safe

INFOID:0000000003306132

The TCM has an electrical fail-safe mode. In this mode TCM operates even if there is an error in a main elec-
tronic control input/output signal circuit.

FAIL-SAFE FUNCTION

If any malfunction occurs in a sensor or solenoid valve, this function controls the CVT to make driving possi-
ble.

JCDWM0482GB

Revision: 2008 October

2009 Murano

TCM

TM-129

< ECU DIAGNOSIS >

[CVT: RE0F09B]

Output Speed Sensor (Secondary Speed Sensor)

The shift pattern is changed in accordance with the throttle position when an unexpected signal is sent from
the output speed sensor (secondary speed sensor) to the TCM. The overdrive control mode is inhibited, and
the transaxle is put in “D”.

Input Speed Sensor (Primary Speed Sensor)

The shift pattern is changed in accordance with the throttle position and secondary speed (vehicle speed)
when an unexpected signal is sent from the input speed sensor (primary speed sensor) to the TCM. The over-
drive control mode is inhibited, and the transaxle is put in “D”.

PNP Switch

If an unexpected signal is sent from the PNP switch to the TCM, the transaxle is put in “D”.

CVT Fluid Temperature Sensor

If an unexpected signal is sent from the CVT fluid temperature sensor to the TCM, the gear ratio in use before
receiving the unexpected signal is maintained or the gear ratio is controlled to keep engine speed under 5,000
rpm.

Transmission Fluid Pressure Sensor A (Secondary Pressure Sensor)

• If an unexpected signal is sent from the transmission fluid pressure sensor A (secondary pressure sensor) to

the TCM, the secondary pressure feedback control is stopped and the offset value obtained before the non-
standard condition occurs is used to control line pressure.

• If transmission fluid pressure sensor A (secondary pressure sensor) error signal is inputted to the TCM, sec-

ondary pressure feedback control stops, but line pressure is controlled normally.

Pressure Control Solenoid A (Line Pressure Solenoid Valve)

If an unexpected signal is sent from the solenoid valve to the TCM, the pressure control solenoid A (line pres-
sure solenoid valve) is turned OFF to achieve the maximum fluid pressure.

Pressure Control Solenoid B (Secondary Pressure Solenoid Valve)

If an unexpected signal is sent from the solenoid valve to the TCM, the pressure control solenoid B (secondary
pressure solenoid valve) is turned OFF to achieve the maximum fluid pressure.

Torque Converter Clutch Solenoid Valve

If an unexpected signal is sent from the solenoid valve to the TCM, the torque converter clutch solenoid valve
is turned OFF to cancel the lock-up.

Step Motor

If an unexpected signal is sent from the step motor to the TCM, the step motor coil phases “A” through “D” are
all turned OFF to hold the gear ratio used just before the non-standard condition occurred.

CVT Lock-up Select Solenoid Valve

If an unexpected signal is sent from the solenoid valve to the TCM, the CVT lock-up select solenoid valve is
turned OFF to cancel the lock-up.

TCM Power Supply (Memory Back-up)

Transaxle assembly is protected by limiting the engine torque when the memory back-up power supply (for
controlling) from the battery is not supplied to the TCM. Normal status is restored when turning the ignition
switch OFF to ON after the normal power supply.

DTC Inspection Priority Chart

INFOID:0000000003306133

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is indicated with other DTCs, start from a diagnosis for “DTC
U1000 CAN COMMUNICATION LINE”. Refer to

TM-38

DTC Index

INFOID:0000000003306134

NOTE:

Priority

Detected items (DTC)

U1000 CAN communication line

Except above

Revision: 2008 October

2009 Murano