Nissan Tiida C11. Manual - part 1251

DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

TM-55

< COMPONENT DIAGNOSIS >

[TYPE 1 (4AT: RE4F03B)]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

3.

Check continuity between TCM connector terminals and revolu-
tion sensor harness connector terminal.

4.

If OK, check harness for short to ground and short to power.

5.

Reinstall any part removed.

 OK or NG

 OK

>>  10A fuse (No.58, located in the IPDM E/R) or ignition switch are malfunctioning. 

 NG

>>  Repair open circuit or short to ground or short to power in harness or connectors.

7.

 CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR (SENSOR GROUND)

1.

Turn ignition switch OFF.

2.

Disconnect the TCM connector and revolution sensor harness connector.

3.

Check continuity between TCM connector terminal and revolu-
tion sensor harness connector terminal.

4.

If OK, check harness for short to ground and short to power.

5.

Reinstall any part removed.

 OK or NG

 OK

>> GO TO 5.

 NG

>>  Repair open circuit or short to ground or short to power

in harness or connectors.

8.

CHECK DTC

Perform 

TM-52, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 5.

Item

Connector

Terminal

Continuity

TCM

E31

10

Yes

Revolution sensor

F38

1

TCM

E31

19

Yes

Revolution sensor

F38

1

SCIA2617E

Item

Connector

Terminal

Continuity

TCM

E32

42

Yes

Revolution sensor

F38

3

SCIA2618E

TM-56

< COMPONENT DIAGNOSIS >

[TYPE 1 (4AT: RE4F03B)]

DTC P0725 ENGINE SPEED SIGNAL

DTC P0725 ENGINE SPEED SIGNAL

Description

INFOID:0000000001694306

The engine speed signal is sent from the ECM to the TCM.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001694307

Remarks: Specification data are reference values.

On Board Diagnosis Logic

INFOID:0000000001694308

• This is an OBD self-diagnostic item.
• Diagnostic trouble code “P0725 ENGINE SPEED SIG” with CONSULT-III or 9th judgement flicker without

CONSULT-III is detected when TCM does not receive the proper voltage signal from ECM.

Possible Cause

INFOID:0000000001694309

Harness or connector
(Circuit is open or shorted.)

DTC Confirmation Procedure

INFOID:0000000001694310

CAUTION:

• Always drive vehicle at a safe speed.
• If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at

least 10 seconds before continuing.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

 WITH CONSULT-III

1.

Turn ignition switch ON and select “DATA MONITOR” mode for “A/T” with CONSULT-III.

2.

Touch “START”.

3.

Start engine and maintain the following conditions for at least 10 consecutive seconds.
VEHICLE SPEED: 10 km/h (6 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position

4.

If the check result is NG, go to 

TM-56, "Diagnosis Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-III”.

 WITHOUT CONSULT-III

1.

Start engine.

2.

Drive vehicle under the following conditions for more than 10 seconds.
Selector lever position: “D” position
Vehicle speed: Higher than 10 km/h (6 MPH)
Throttle position: Greater than 1.0/8 of the full throttle position

3.

Perform self-diagnosis. Refer to 

TM-38, "Diagnosis Procedure without CONSULT-III"

.

4.

If the check result is NG, go to 

TM-56, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001694312

1.

CHECK DTC WITH ECM

Check DTC with CONSULT-III “ENGINE”.
Turn ignition switch ON and select “SELF-DIAGNOSTIC RESULTS” mode for “ENGINE” with CONSULT-III.
Refer to 

EC-107, "CONSULT-III Function"

.

OK or NG

OK

>> GO TO 2.

Item name

Condition

Display value

ENGINE SPEED

Engine running

Approximately matches the tachometer reading.

DTC P0725 ENGINE SPEED SIGNAL

TM-57

< COMPONENT DIAGNOSIS >

[TYPE 1 (4AT: RE4F03B)]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

NG

>> Check ignition signal circuit for engine control. Refer to 

EC-319, "Diagnosis Procedure"

.

2.

CHECK INPUT SIGNAL

With CONSULT-III

1.

Start engine.

2.

Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-III.

3.

Read out the value of “ENGINE SPEED”. Check engine speed changes according to throttle position.

Without CONSULT-III

1.

Start engine.

2.

Check voltage between TCM harness connector terminal and
ground.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3.

 CHECK HARNESS BETWEEN TCM AND ECM

1.

Turn ignition switch OFF.

2.

Disconnect ECM connector and TCM connector.

3.

Check continuity between ECM connector and TCM connector.

4.

If OK, check harness for short to ground and short to power.

5.

If OK, check continuity between body ground and transaxle
assembly.

6.

Reinstall any part removed.

OK or NG

OK

>> GO TO 4.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

4.

CHECK DTC

Perform 

TM-56, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 5.

5.

CHECK TCM

1.

Check TCM input/output signal. Refer to 

TM-119, "Reference Value"

.

2.

If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

Item name

Condition

Display value

ENGINE SPEED (rpm) 

Engine running

Approximately matches the tachome-
ter reading.

item

Connec-

tor

Terminal

Condition

Judgement standard (Ap-

prox.)

Engine 

speed signal

E32

39 - 

Ground

 

and Refer 

to 

EC-328

.

SCIA3265E

Item

Connector

Terminal Continuity

TCM

E32

39

Yes

ECM

F10

13

SCIA7173E

TM-58

< COMPONENT DIAGNOSIS >

[TYPE 1 (4AT: RE4F03B)]

DTC P0725 ENGINE SPEED SIGNAL

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.