Nissan Quest E52. Manual - part 1215

 

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Nissan Quest E52. Manual - part 1215

 

 

TM-90

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

P0720 OUTPUT SPEED SENSOR

4.

Check the continuity between secondary speed sensor harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

DETECT MALFUNCTIONING ITEMS

Check the following items:
• IPDM E/R
• 10A fuse (# 43, located in IPDM E/R)
• Harness open circuit or short circuit between ignition switch and IPDM E/R
• Ignition switch
Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Repair or replace damaged parts.

Secondary speed sensor

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F19

3

E11

58

Existed

Secondary speed sensor

Continuity

Connector

Terminal

F19

3

Ground

Not existed

P0725 ENGINE SPEED

TM-91

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

P0725 ENGINE SPEED

Description

INFOID:0000000009650144

The engine speed signal is transmitted from ECM to TCM via CAN communication line.

DTC Logic

INFOID:0000000009650145

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1.

Start the engine.

2.

Select “Data Monitor” in “TRANSMISSION”.

3.

Select “PRI SPEED”.

4.

Drive the vehicle.

5.

Maintain the following conditions for 10 seconds or more.

6.

Stop the vehicle.

7.

Check DTC.

Is “P0725” detected?

YES

>> Go to 

TM-91, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009650146

1.

CHECK DTC WITH ECM

With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Results” in “ENGINE”.

Is any DTC detected?

YES

>> Check DTC detected item. Refer to  

EC-96, "DTC Index"

.

NO

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

DTC

Trouble diagnosis name

DTC detection condition

Possible cause

P0725

Engine Speed Input Circuit

TCM detects malfunction in CAN communi-
cation with ECM

• Harness or connectors

(CAN communication line is open or 
shorted.)

• ECM

When below diagnosis conditions are met, 
engine speed received from ECM becomes 
less than 250 rpm
• Diagnosis Condition
- Primary speed: 1,000 rpm or more

PRI SPEED

: 1,000 rpm or more

TM-92

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

P0740 TORQUE CONVERTER

P0740 TORQUE CONVERTER

DTC Logic

INFOID:0000000009650147

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1.

Start the engine.

2.

Warm up the engine. [Set the CVT fluid to 10

°

C (50

°

F) or more.]

NOTE:
When the ambient temperature is 20

°

C (68

°

F), the CVT fluid usually increases to 50 to 80

°

C (122 to

176

°

F) with driving in an urban area for approximately 10 minutes.

3.

Drive the vehicle.

4.

Maintain the following conditions for 10 seconds or more.

5.

Stop the vehicle.

6.

Check DTC.

With GST

Follow the procedure “With CONSULT”.

Is “P0740” detected?

YES

>> Go to 

TM-92, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009650148

1.

CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE

1.

Disconnect the CVT unit connector.

2.

Check the torque converter clutch solenoid valve. Refer to 

TM-93, "Component Inspection (Torque Con-

verter Clutch Solenoid Valve)"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the transaxle assembly due to malfunction in the torque converter clutch solenoid valve.

Refer to 

TM-174, "Removal and Installation"

.

DTC

Trouble diagnosis name

DTC detection condition

Possible cause

P0740

Torque Converter Clutch Cir-
cuit/Open

Torque converter clutch solenoid valve mon-
itor voltage value of TCM keeps less than 70 
% of command voltage for 1 second or more

• Harness or connectors

(Torque converter clutch solenoid valve 
circuit is open or shorted.)

• Torque converter clutch solenoid valve

When below diagnosis conditions are met, 
torque converter clutch solenoid valve mon-
itor current value of TCM keeps less than 
400 mA for 5 seconds or more
• Diagnosis Condition
- Torque converter clutch solenoid valve 

command current value: 750 mA or more

Selector lever

: “D” position

Vehicle speed

: 40 km/h (25 MPH) or more

P0740 TORQUE CONVERTER

TM-93

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F09B]

C

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TM

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2.

CHECK HARNESS BETWEEN TCM AND CVT UNIT

1.

Disconnect the TCM connector.

2.

Check the continuity between TCM harness connector terminal and CVT unit harness connector terminal.

3.

Check continuity between TCM harness connector terminal and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Repair or replace damaged parts.

Component Inspection (Torque Converter Clutch Solenoid Valve)

INFOID:0000000009650149

1.

CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE

Check the resistance between CVT unit connector terminal and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the transaxle assembly due to malfunction in the torque converter clutch solenoid valve.

Refer to 

TM-174, "Removal and Installation"

.

TCM

CVT unit

Continuity

Connector

Terminal

Connector

Terminal

F23

38

F24

12

Existed

TCM

Continuity

Connector

Terminal

F23

38

Ground

Not existed

CVT unit

Condition

Resistance (Approx.)

Terminal

12

Ground

CVT fluid temperature: 20

°

C (68

°

F)

5.60 – 6.60 

CVT fluid temperature: 50

°

C (122

°

F)

6.76 – 6.87 

CVT fluid temperature: 80

°

C (176

°

F)

7.47 – 7.59 

 

 

 

 

 

 

 

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