Nissan Murano. Manual - part 1388

TM-94

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

P1722 VEHICLE SPEED

YES

>> Replace TCM. Refer to 

TM-165, "Exploded View"

.

NO

>> Repair or replace damaged parts.

P1723 SPEED SENSOR

TM-95

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

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P1723 SPEED SENSOR

Description

INFOID:0000000009719505

The secondary speed sensor detects the revolution of parking gear and generates a pulse signal. The pulse
signal is sent to the TCM, which converts it into vehicle speed.
The primary speed sensor detects the primary pulley revolution speed and sends a signal to the TCM.

DTC Logic

INFOID:0000000009719506

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

1.

Turn ignition switch ON.

2.

Select “Data Monitor” in “TRANSMISSION”.

3.

Start engine and maintain the following conditions for at least 5 consecutive seconds.

Is “P1723” detected?

YES

>> Go to 

TM-95, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000009719507

1.

CHECK STEP MOTOR FUNCTION

Perform “Self Diagnostic Results” in “TRANSMISSION”.

Is “P1778” detected?

YES

>> Repair or replace damaged parts. Refer to 

TM-104, "DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK SECONDARY SPEED SENSOR SYSTEM

Check secondary speed sensor system. Refer to 

TM-60, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

DTC

Trouble diagnosis name

DTC is detected if...

Possible cause

P1723

Speed Sensor Circuit

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 “P0720”, the “P0715” or the 
“P0725“ is displayed with the DTC at the 
same time.

• Harness or connectors

(Sensor circuit is open or shorted.)

• Secondary speed sensor
• Primary speed sensor
• Engine speed signal system

VEHICLE SPEED

: 10 km/h (6 MPH) or more

ACC PEDAL OPEN

: More than 1.0/8

RANGE

: “D” position

ENG SPEED

: 450 rpm or more

Driving location

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

TM-96

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

P1723 SPEED SENSOR

3.

CHECK PRIMARY SPEED SENSOR SYSTEM

Check primary speed sensor system. Refer to 

TM-57, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK ENGINE SPEED SIGNAL SYSTEM

Check engine speed signal system. Refer to 

TM-64, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

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-165, "Exploded View"

.

NO

>> Repair or replace damaged parts.

P1726 THROTTLE CONTROL SIGNAL

TM-97

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

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P1726 THROTTLE CONTROL SIGNAL

Description

INFOID:0000000009719508

The electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throt-
tle position sensor, etc. The actuator sends a signal to the ECM, and ECM sends the signal to TCM via CAN
communication.

DTC Logic

INFOID:0000000009719509

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

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

1.

Start engine and let it idle for 5 seconds.

2.

Perform “Self Diagnostic Results” in “TRANSMISSION”.

Is “P1726” detected?

YES

>> Go to 

TM-97, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000009719510

1.

CHECK DTC WITH ECM

With CONSULT

1.

Turn ignition switch ON.

2.

Select “Self Diagnostic Results” in “ENGINE”.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Check DTC Detected Item. Refer to 

EC-507, "DTC Index"

.

2.

CHECK DTC WITH TCM

With CONSULT

Perform “Self Diagnostic Results” in “TRANSMISSION”.

Is “P1726” detected?

YES

>> Replace TCM. Refer to 

TM-165, "Exploded View"

.

NO

>> GO TO 3.

3.

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-165, "Exploded View"

.

NO

>> Repair or replace damaged parts.

DTC

Trouble diagnosis name

DTC is detected if...

Possible cause

P1726

Throttle Control Signal Cir-
cuit

The electronically controlled throttle for ECM 
is malfunctioning.

Harness or connectors
(Sensor circuit is open or shorted.)