Nissan Murano Z51. Instruction - part 1426

P0720 OUTPUT SPEED SENSOR

TM-55

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

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P0720 OUTPUT SPEED SENSOR

Description

INFOID:0000000005513983

The secondary speed sensor detects the revolution of the CVT output shaft and emits a pulse signal. The
pulse signal is transmitted to the TCM, which converts it into vehicle speed.

DTC Logic

INFOID:0000000005513984

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.

1.

CHECK DTC DETECTION

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “Data Monitor” in “TRANSMISSION”.

3.

Start engine and maintain the following conditions for at least 12 consecutive seconds.

With GST

Follow the procedure “With CONSULT-III”.

Is “P0720” detected?

YES

>> Go to 

TM-55, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000005513985

1.

CHECK SECONDARY SPEED SENSOR

With CONSULT-III

Check the pulse when vehicle drive.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> GO TO 2.

2.

CHECK POWER AND SENSOR GROUND

1.

Turn ignition switch OFF.

2.

Disconnect secondary speed sensor connector.

3.

Turn ignition switch ON.

DTC

Trouble diagnosis name

DTC is detected if...

Possible cause

P0720

Output Speed Sensor Circuit

• Signal from secondary speed sensor is not 

input due to open or short circuit.

• An unexpected signal is input during run-

ning.

• Harness or connectors

(Sensor circuit is open or shorted.)

• Secondary speed sensor

ACC PEDAL OPEN

: More than 1.0/8

RANGE

: “D” position

Driving location

: Driving the vehicle uphill (increased engine load) will help maintain the driving 
conditions required for this test.

TCM connector

Condition

Data (Approx.)

Connector

Terminal

F23

34

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

350 Hz

TM-56

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

P0720 OUTPUT SPEED SENSOR

4.

Check voltage between secondary speed sensor vehicle side harness connector terminals.

5.

Check voltage between secondary speed sensor vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO-1 (Battery voltage is not supplied between terminals 1 and 3, terminal 3 and ground)>>GO TO 6.
NO-2 (Battery voltage is not supplied between terminals 1 and 3 only)>>GO TO 8.

3.

CHECK HARNESS BETWEEN TCM AND SECONDARY SPEED SENSOR (SENSOR GROUND)

1.

Turn ignition switch OFF.

2.

Disconnect TCM connector.

3.

Check continuity between TCM vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK HARNESS BETWEEN TCM AND SECONDARY SPEED SENSOR (PART 1)

Check continuity between TCM vehicle side harness connector terminal and secondary speed sensor vehicle
side harness connector terminal.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

CHECK HARNESS BETWEEN TCM AND SECONDARY SPEED SENSOR (PART 2)

Check continuity between TCM vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair or replace damaged parts.

6.

CHECK HARNESS BETWEEN IPDM E/R AND SECONDARY SPEED SENSOR (POWER) (PART 1)

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector.

Secondary speed sensor vehicle side harness connector

Voltage (Approx.)

Connector

Terminal

F19

1

3

Battery voltage

Secondary speed sensor vehicle side harness connector

Ground

Voltage (Approx.)

Connector

Terminal

F19

3

Battery voltage

TCM vehicle side harness connector

Ground

Continuity

Connector

Terminal

F23

7

Not existed

TCM vehicle side harness connector

secondary speed sensor vehicle side harness con-

nector

Continuity

Connector

Terminal

Connector

Terminal

F23

34

F19

2

Existed

TCM vehicle side harness connector

Ground

Continuity

Connector

Terminal

F23

34

Not existed

P0720 OUTPUT SPEED SENSOR

TM-57

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

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3.

Check continuity between IPDM E/R vehicle side harness connector terminal and secondary speed sen-
sor vehicle side harness connector terminal.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace damaged parts.

7.

CHECK HARNESS BETWEEN IPDM E/R AND SECONDARY SPEED SENSOR (POWER) (PART 2)

Check continuity between IPDM E/R vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES

>>

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

• Harness for short or open between ignition switch and IPDM E/R
• 10A fuse (No. 43, located in IPDM E/R)
• Ignition switch

NO

>> Repair or replace damaged parts.

8.

CHECK HARNESS BETWEEN TCM AND SECONDARY SPEED SENSOR (SENSOR GROUND) (PART 1)

1.

Turn ignition switch OFF.

2.

Disconnect TCM connector.

3.

Check continuity between TCM vehicle side harness connector terminal and secondary speed sensor
vehicle side harness connector terminal.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace damaged parts.

9.

CHECK HARNESS BETWEEN TCM AND SECONDARY SPEED SENSOR (SENSOR GROUND) (PART 2)

Check continuity between TCM vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair or replace damaged parts.

10.

CHECK TCM

1.

Replace with the same type of TCM. Refer to 

TM-160, "Exploded View"

.

2.

Perform “DTC CONFIRMATION PROCEDURE”. Refer to 

TM-55, "DTC Logic"

.

Is “P0720” detected?

YES

>> Replace the secondary speed sensor. Refer to 

TM-168, "Exploded View"

.

NO

>> Replace TCM. Refer to 

TM-160, "Exploded View"

.

IPDM E/R vehicle side harness connector

Secondary speed sensor vehicle side harness con-

nector

Continuity

Connector

Terminal

Connector

Terminal

F12

58

F19

3

Existed

IPDM E/R vehicle side harness connector

Ground

Continuity

Connector

Terminal

F12

58

Not existed

TCM vehicle side harness connector

Secondary speed sensor vehicle side harness con-

nector

Continuity

Connector

Terminal

Connector

Terminal

F23

7

F19

1

Existed

TCM vehicle side harness connector

Ground

Continuity

Connector

Terminal

F23

7

Not existed

TM-58

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

P0720 OUTPUT SPEED SENSOR

11.

DETECT MALFUNCTIONING ITEMS

Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?

YES

>> Replace TCM. Refer to 

TM-160, "Exploded View"

.

NO

>> Repair or replace damaged parts.