Nissan Pathfinder (2008 year). Manual - part 591

TM-70

< COMPONENT DIAGNOSIS >

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

3.

Start engine.

4.

Read out the value of “TCC SOLENOID” while driving.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 2.

2.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-101, "Diagnosis Procedure"

.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3.

DETECT MALFUNCTIONING ITEM

Check the following.
• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.

OK or NG

OK

>> Replace the control valve with TCM. Refer to 

TM-199, "Control Valve with TCM and A/T Fluid

Temperature Sensor 2"

.

NG

>> Repair or replace damaged parts.

4.

CHECK DTC

Perform “DTC Confirmation Procedure”.
• Refer to 

TM-69, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)

TM-71

< COMPONENT DIAGNOSIS >

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DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)

Description

INFOID:0000000001282810

This malfunction is detected when the A/T does not shift into 5th gear position or the torque converter clutch
does not lock-up as instructed by the TCM. This is not only caused by electrical malfunction (circuits open or
shorted) but also by mechanical malfunction such as control valve sticking, improper solenoid valve operation,
etc.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001282811

On Board Diagnosis Logic

INFOID:0000000001282812

• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0744 A/T TCC S/V FNCTN” with CONSULT-III or 3rd judgment flicker without

CONSULT-III is detected under the following conditions.

- When A/T cannot perform lock-up even if electrical circuit is good.
- When TCM detects as irregular by comparing difference value with slip rotation.

Possible Cause

INFOID:0000000001282813

• Harness or connectors

(The solenoid circuit is open or shorted.)

• Torque converter clutch solenoid valve
• Hydraulic control circuit

DTC Confirmation Procedure

INFOID:0000000001282814

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

 WITH CONSULT-III

1.

Start engine.

2.

Select “DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.

3.

Drive vehicle and maintain the following conditions for at least 30 consecutive seconds. 
ACCELE POSI: More than 1.0/8 
SLCT LVR POSI: “D” position 
TCC SOLENOID: 0.4 - 0.6 A
VEHICLE SPEED: 80 km/h (50 MPH) or more
Driving locations: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.

4.

If DTC is detected, go to 

TM-71, "Diagnosis Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-III”.

Diagnosis Procedure

INFOID:0000000001282815

1.

CHECK INPUT SIGNAL

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.

Item name

Condition 

Display value (Approx.)

TCC SOLENOID

When performing slip lock-up

0.2 - 0.4 A

When performing lock-up

0.4 - 0.6 A

TM-72

< COMPONENT DIAGNOSIS >

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)

3.

Start the engine.

4.

Read out the value of “TCC SOLENOID” while driving.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 2.

2.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-101, "Diagnosis Procedure"

.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3.

DETECT MALFUNCTIONING ITEM

Check the following.
• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.

OK or NG

OK

>> Replace the control valve with TCM. Refer to 

TM-199, "Control Valve with TCM and A/T Fluid

Temperature Sensor 2"

.

NG

>> Repair or replace damaged parts.

4.

CHECK DTC

Perform “DTC Confirmation Procedure”.
• Refer to 

TM-71, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

DTC P0745 LINE PRESSURE SOLENOID VALVE

TM-73

< COMPONENT DIAGNOSIS >

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DTC P0745 LINE PRESSURE SOLENOID VALVE

Description

INFOID:0000000001282816

The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in
response to a signal sent from the TCM.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001282817

On Board Diagnosis Logic

INFOID:0000000001282818

• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0745 L/PRESS SOL/CIRC” with CONSULT-III or 4th judgement flicker without

CONSULT-III is detected under the following conditions.

- When TCM detects an improper voltage drop when it tries to operate the solenoid valve.
- When TCM detects as irregular by comparing target value with monitor value.

Possible Cause

INFOID:0000000001282819

• Harness or connectors

(The solenoid circuit is open or shorted.)

• Line pressure solenoid valve

DTC Confirmation Procedure

INFOID:0000000001282820

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
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 “ENGINE” with CONSULT-III.

2.

Engine start and wait at least 5 second.

3.

 If DTC is detected, go to 

TM-73, "Diagnosis Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-III”.

Diagnosis Procedure

INFOID:0000000001282821

1.

CHECK INPUT SIGNAL

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.

3.

Start the engine.

4.

Read out the value of “LINE PRES SOL” while driving.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 2.

2.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-101, "Diagnosis Procedure"

.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3.

DETECT MALFUNCTIONING ITEM

Item name

Condition 

Display value (Approx.)

LINE PRES SOL

During driving

0.2 - 0.6 A

TM-74

< COMPONENT DIAGNOSIS >

DTC P0745 LINE PRESSURE SOLENOID VALVE

Check the following.
• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG

OK

>> Replace the control valve with TCM. Refer to 

TM-199, "Control Valve with TCM and A/T Fluid

Temperature Sensor 2"

.

NG

>> Repair or replace damaged parts.

4.

CHECK DTC

Perform “DTC Confirmation Procedure”.
• Refer to 

TM-73, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

DTC P1705 THROTTLE POSITION SENSOR

TM-75

< COMPONENT DIAGNOSIS >

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DTC P1705 THROTTLE POSITION SENSOR

Description

INFOID:0000000001282822

Electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throttle
position sensor, etc. The actuator sends a signal to the ECM, and ECM sends signals to TCM with CAN com-
munication.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001282823

On Board Diagnosis Logic

INFOID:0000000001282824

• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1705 TP SEN/CIRC A/T” with CONSULT-III or 15th judgement flicker without

CONSULT-III is detected when TCM does not receive the proper accelerator pedal position signals (input by
CAN communication) from ECM.

Possible Cause

INFOID:0000000001282825

Harness or connectors
(The sensor circuit is open or shorted.)

DTC Confirmation Procedure

INFOID:0000000001282826

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

 WITH CONSULT-III

1.

Turn ignition switch “ON”. (Do not start engine.)

2.

Select “DATA MONITOR” mode for "TRANSMISSION" with CONSULT-III.

3.

Start engine and let it idle for 1 second.

4.

If DTC is detected, go to 

TM-75, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001282827

1.

CHECK CAN COMMUNICATION LINE

Perform the self-diagnosis. Refer to 

TM-35, "CONSULT-III Function (TRANSMISSION)"

.

Is a malfunction in the CAN communication indicated in the results?

YES

>> Check CAN communication line. Refer to 

TM-45

.

NO

>> GO TO 2.

2.

CHECK DTC WITH TCM 

With CONSULT-III

1.

Turn ignition switch ON. (Do not start engine.)

2.

Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.

3.

Depress accelerator pedal and read out the value of “ACCELE POSI”.

4.

Select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-III. Refer to 

TM-35, "CON-

SULT-III Function (TRANSMISSION)"

.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3.

CHECK DTC WITH ECM 

Item name

Condition 

Display value (Approx.)

ACCELE POSI

Released accelerator pedal.

0.0/8

Fully depressed accelerator pedal.

8/8

TM-76

< COMPONENT DIAGNOSIS >

DTC P1705 THROTTLE POSITION SENSOR

With CONSULT-III

1.

Turn ignition switch ON. (Do not start engine.)

2.

Select “SELF-DIAG RESULTS” mode for “ENGINE” with CONSULT-III. Refer to 

EC-74, "CONSULT-III

Function (ENGINE)"

 (VQ40DE) or 

EC-542, "CONSULT-III Function (ENGINE)"

 (VK56DE).

OK or NG

OK

>> GO TO 4.

NG

>>

Check the DTC detected item. Refer to 

EC-74, "CONSULT-III Function (ENGINE)"

 (VQ40DE) or

EC-542, "CONSULT-III Function (ENGINE)"

 (VK56DE).

• If CAN communication line is detected, go to 

TM-45, "Diagnosis Procedure"

.

4.

CHECK DTC

Perform “DTC Confirmation Procedure”.
• Refer to 

TM-75, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 5.

5.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-101, "Diagnosis Procedure"

.

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace damaged parts.

6.

DETECT MALFUNCTIONING ITEM

Check the following.
• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.

OK or NG

OK

>> Replace the control valve with TCM. Refer to 

TM-199, "Control Valve with TCM and A/T Fluid

Temperature Sensor 2"

.

NG

>> Repair or replace damaged parts.

DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT

TM-77

< COMPONENT DIAGNOSIS >

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DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT

Description

INFOID:0000000001282828

The A/T fluid temperature sensor detects the A/T fluid temperature and sends a signal to the TCM.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001282829

On Board Diagnosis Logic

INFOID:0000000001282830

• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1710 (A/T), P0710 (ENGINE) ATF TEMP SEN/CIRC” with CONSULT-III or 10th

judgement flicker without CONSULT-III is detected when TCM receives an excessively low or high voltage
from the sensor.

Possible Cause

INFOID:0000000001282831

• Harness or connectors

(The sensor circuit is open or shorted.)

• A/T fluid temperature sensors 1, 2

DTC Confirmation Procedure

INFOID:0000000001282832

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

 WITH CONSULT-III

1.

Turn ignition switch “ON”. (Do not start engine.)

2.

Select “DATA MONITOR” mode for “ENGINE” with CONSULT-III.

3.

Start engine and maintain the following conditions for at least 10 minutes (Total). (It is not necessary to
maintain continuously.)
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.0/8
Selector lever: “D” position

4.

If DTC is detected, go to 

TM-77, "Diagnosis Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-III”.

Diagnosis Procedure

INFOID:0000000001282834

1.

CHECK A/T FLUID TEMPERATURE SENSOR 1 SIGNAL

With CONSULT-III

1.

Start engine.

2.

Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.

3.

Read out the value of “ATF TEMP SE 1”.

OK or NG

OK 

>> GO TO 2.

NG

>> GO TO 3.

2.

CHECK A/T FLUID TEMPERATURE SENSOR 2 SIGNAL

With CONSULT-III

Item name

Condition 

°

C (

°

F) Display 

value 

(Approx.)

ATF TEMP SE 1

0 (32) - 20 (68) - 80 (176)

3.3 - 2.7 - 0.9 V

ATF TEMP SE 2

3.3 - 2.5 - 0.7 V