Nissan Pathfinder (2006 year). Manual - part 7

TROUBLE DIAGNOSIS

AT-47

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2006 Pathfinder

WORK FLOW

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Make good use of the two sheets provided, “Information From Customer” (Refer to 

AT-48

 ) and “Diagnostic

Worksheet” (Refer to 

AT-48

 ), to perform the best troubleshooting possible.

Work Flow Chart

*1.

AT-48

*2.

AT-48

*3.

AT-44

*4.

AT-53

*5.

AT-53

, 

AT-54

*6.

AT-56

*7.

AT-87

*8.

AT-40

*9.

AT-103

*10.

AT-178

*11.

AT-183

*12.

AT-219

*13.

AT-64

*14.

AT-41

*15.

AT-103

*16.

EC-48

WCIA0251E

AT-48

TROUBLE DIAGNOSIS

2006 Pathfinder

DIAGNOSTIC WORKSHEET
Information From Customer

KEY POINTS

●

WHAT..... Vehicle & A/T model

●

WHEN..... Date, Frequencies

●

WHERE..... Road conditions

●

HOW..... Operating conditions, Symptoms

Diagnostic Worksheet Chart

Customer name

MR/MS

Model & Year

VIN

Trans. Model

Engine

Mileage

Malfunction Date

Manuf. Date

In Service Date

Frequency

❏

 Continuous

❏

 Intermittent (times a day)

Symptoms

❏

 Vehicle does not move.

(

❏

 Any position

❏

 Particular position)

❏

 No up-shift

(

❏

 1st 

→

 2nd

❏

 2nd 

→

 3rd

❏

 3rd 

→

 4th   

❏

 4th 

→

 5th)

❏

 No down-shift

(

❏

 5th 

→

 4th   

❏

 4th 

→

 3rd

❏

 3rd 

→

 2nd

❏

 2nd 

→

 1st)

❏

 Lock-up malfunction

❏

 Shift point too high or too low.

❏

 Shift shock or slip

(

❏

 N 

→

 D

❏

 Lock-up

❏

 Any drive position)

❏

 Noise or vibration

❏

 No kick down

❏

 No pattern select

❏

 Others

(

)

Malfunction indicator lamp (MIL)

❏

 Continuously lit

❏

 Not lit

1

❏

 Read the item on cautions concerning fail-safe and understand the customer's complaint.

AT-44

2

❏

 ATF inspection

AT-53

❏

 Leak (Repair leak location.)

❏

 State

❏

 Amount

3

❏

 Stall test and line pressure test

AT-53

, 

AT-

54

❏

 Stall test

❏

 Torque converter one-way clutch

❏

 Front brake

❏

 High and low reverse clutch

❏

 Low coast brake

❏

 Forward brake

❏

 Reverse brake

❏

 Forward one-way clutch

❏

 1st one-way clutch

❏

 3rd one-way clutch

❏

 Engine

❏

 Line pressure low

❏

 Except for input clutch and direct 

clutch, clutches and brakes OK

❏

 Line pressure inspection - Suspected part:

TROUBLE DIAGNOSIS

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2006 Pathfinder

4

❏

 Perform all road tests and enter checks in required inspection items.

AT-56

4-1.

Check before engine is started 

AT-57

❏

 

AT-183, "O/D OFF Indicator Lamp Does Not Come On"

❏

 Perform self-diagnostics   Enter checks for detected items. 

AT-90

❏

 

AT-103, "DTC U1000 CAN COMMUNICATION LINE"

❏

 

AT-106, "DTC P0615 START SIGNAL CIRCUIT"

❏

 

AT-110, "DTC P0700 TCM"

❏

 

AT-111, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"

❏

 

AT-115, "DTC P0717 TURBINE REVOLUTION SENSOR"

❏

 

AT-117, "DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)"

❏

 

AT-122, "DTC P0725 ENGINE SPEED SIGNAL"

❏

 

AT-124, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"

❏

 

AT-126, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"

❏

 

AT-128, "DTC P0745 LINE PRESSURE SOLENOID VALVE"

❏

 

AT-130, "DTC P1705 THROTTLE POSITION SENSOR"

❏

 

AT-133, "DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT"

❏

 

AT-138, "DTC P1721 VEHICLE SPEED SENSOR MTR"

❏

 

AT-140, "DTC P1730 A/T INTERLOCK"

❏

 

AT-143, "DTC P1731 A/T 1ST ENGINE BRAKING"

❏

 

AT-145, "DTC P1752 INPUT CLUTCH SOLENOID VALVE"

❏

 

AT-147, "DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION"

❏

 

AT-149, "DTC P1757 FRONT BRAKE SOLENOID VALVE"

❏

 

AT-151, "DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION"

❏

 

AT-153, "DTC P1762 DIRECT CLUTCH SOLENOID VALVE"

❏

 

AT-155, "DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION"

❏

 

AT-157, "DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE"

❏

 

AT-159, "DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE 

FUNCTION"

❏

 

AT-161, "DTC P1772 LOW COAST BRAKE SOLENOID VALVE"

❏

 

AT-163, "DTC P1774 LOW COAST BRAKE SOLENOID VALVE FUNCTION"

❏

 

AT-165, "DTC P1841 ATF PRESSURE SWITCH 1"

❏

 

AT-167, "DTC P1843 ATF PRESSURE SWITCH 3"

❏

 

AT-169, "DTC P1845 ATF PRESSURE SWITCH 5"

❏

 

AT-171, "DTC P1846 ATF PRESSURE SWITCH 6"

4-2.

Idle inspection 

AT-57

❏

 

AT-184, "Engine Cannot Be Started In “P” or “N” Position"

❏

 

AT-185, "In “P” Position, Vehicle Moves When Pushed"

❏

 

AT-186, "In “N” Position, Vehicle Moves"

❏

 

AT-187, "Large Shock (“N” to “D” Position)"

❏

 

AT-189, "Vehicle Does Not Creep Backward In “R” Position"

❏

 

AT-192, "Vehicle Does Not Creep Forward In “D” Position"

4-3.

Driving tests

AT-58

Part 1

❏

 

AT-194, "Vehicle Cannot Be Started From D

1

"

❏

 

AT-196, "A/T Does Not Shift: D

1

 

→

 D

2

"

❏

 

AT-198, "A/T Does Not Shift: D

2

 

→

 D

3

"

❏

 

AT-200, "A/T Does Not Shift: D

3

 

→

 D

4

"

❏

 

AT-202, "A/T Does Not Shift: D

4

 

→

 D

5

"

❏

 

AT-204, "A/T Does Not Perform Lock-up"

❏

 

AT-206, "A/T Does Not Hold Lock-up Condition"

❏

 

AT-208, "Lock-up Is Not Released"

❏

 

AT-209, "Engine Speed Does Not Return to Idle"

AT-50

TROUBLE DIAGNOSIS

2006 Pathfinder

4

4-3

Part 2

AT-60

❏

 

AT-194, "Vehicle Cannot Be Started From D

1

"

❏

 

AT-196, "A/T Does Not Shift: D

1

 

→

 D

2

"

❏

 

AT-198, "A/T Does Not Shift: D

2

 

→

 D

3

"

❏

 

AT-200, "A/T Does Not Shift: D

3

 

→

 D

4

"

Part 3

AT-61

❏

 

AT-211, "A/T Does Not Shift: 5th gear 

→

 4th gear"

❏

 

AT-213, "A/T Does Not Shift: 4th gear 

→

 3rd gear"

❏

 

AT-215, "A/T Does Not Shift: 3rd gear 

→

 2nd gear"

❏

 

AT-217, "A/T Does Not Shift: 2nd gear 

→

 1st gear"

❏

 

AT-219, "Vehicle Does Not Decelerate By Engine Brake"

❏

 Perform self-diagnostics   Enter checks for detected items. 

AT-90

❏

 

AT-103, "DTC U1000 CAN COMMUNICATION LINE"

❏

 

AT-106, "DTC P0615 START SIGNAL CIRCUIT"

❏

 

AT-110, "DTC P0700 TCM"

❏

 

AT-111, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"

❏

 

AT-115, "DTC P0717 TURBINE REVOLUTION SENSOR"

❏

 

AT-117, "DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)"

❏

 

AT-122, "DTC P0725 ENGINE SPEED SIGNAL"

❏

 

AT-124, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"

❏

 

AT-126, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"

❏

 

AT-128, "DTC P0745 LINE PRESSURE SOLENOID VALVE"

❏

 

AT-130, "DTC P1705 THROTTLE POSITION SENSOR"

❏

 

AT-133, "DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT"

❏

 

AT-138, "DTC P1721 VEHICLE SPEED SENSOR MTR"

❏

 

AT-140, "DTC P1730 A/T INTERLOCK"

❏

 

AT-143, "DTC P1731 A/T 1ST ENGINE BRAKING"

❏

 

AT-145, "DTC P1752 INPUT CLUTCH SOLENOID VALVE"

❏

 

AT-147, "DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION"

❏

 

AT-149, "DTC P1757 FRONT BRAKE SOLENOID VALVE"

❏

 

AT-151, "DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION"

❏

 

AT-153, "DTC P1762 DIRECT CLUTCH SOLENOID VALVE"

❏

 

AT-155, "DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION"

❏

 

AT-157, "DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE"

❏

 

AT-159, "DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE 

FUNCTION"

❏

 

AT-161, "DTC P1772 LOW COAST BRAKE SOLENOID VALVE"

❏

 

AT-163, "DTC P1774 LOW COAST BRAKE SOLENOID VALVE FUNCTION"

❏

 

AT-165, "DTC P1841 ATF PRESSURE SWITCH 1"

❏

 

AT-167, "DTC P1843 ATF PRESSURE SWITCH 3"

❏

 

AT-169, "DTC P1845 ATF PRESSURE SWITCH 5"

❏

 

AT-171, "DTC P1846 ATF PRESSURE SWITCH 6"

5

❏

 Inspect each system for items found to be NG in the self-diagnostics and repair or replace the malfunction parts. 

6

❏

 Perform all road tests and enter the checks again for the required items.

AT-56

7

❏

 For any remaining NG items, perform the “diagnostics procedure” and repair or replace the malfunction parts. 

See the chart for diagnostics by symptoms. (This chart also contains other symptoms and inspection proce-
dures.)

AT-64

8

❏

 Erase the results of the self-diagnostics from the TCM.

AT-41

TROUBLE DIAGNOSIS

AT-51

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2006 Pathfinder

A/T Electrical Parts Location

ECS00EF4

SCIA6251E

AT-52

TROUBLE DIAGNOSIS

2006 Pathfinder

Schematic

ECS00EF5

BCWA0575E

TROUBLE DIAGNOSIS

AT-53

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2006 Pathfinder

Inspections Before Trouble Diagnosis

ECS00EF6

A/T FLUID CHECK
Fluid Leakage and Fluid Level Check 

●

Inspect for fluid leakage and check the fluid level. Refer to 

MA-24, "Changing the Automatic Transmission

Fluid (ATF)"

 .

Fluid Condition Check

Inspect the fluid condition.

STALL TEST
Stall Test Procedure

1.

Inspect the amount of engine oil. Replenish the engine oil if necessary.

2.

Drive for about 10 minutes to warm up the vehicle so that the A/
T fluid temperature is 50 to 80

°

C (122 to 176

°

F). Inspect the

amount of ATF. Replenish if necessary.

3.

Securely engage the parking brake so that the tires do not turn.

4.

Engine start, apply foot brake, and place selector lever in “D”
position.

5.

While holding down the foot brake, gradually press down the
accelerator pedal.

6.

Quickly read off the stall speed, then quickly remove your foot
from the accelerator pedal.

CAUTION:

Do not hold down the accelerator pedal for more than 5 sec-
onds during this test.

Fluid condition

Conceivable Cause

Required Operation

Varnished (viscous 
varnish state)

Clutch, brake 
scorched

Replace the ATF and check the A/T 
main unit and the vehicle for mal-
functions (wire harnesses, cooler 
pipes, etc.)

Milky white or 
cloudy

Water in the fluid

Replace the ATF and check for 
places where water is getting in.

Large amount of 
metal powder mixed 
in

Unusual wear of 
sliding parts within 
A/T

Replace the ATF and check for 
improper operation of the A/T.

SAT638A

SAT647B

SCIA1224E

Stall speed:

2,200 - 2,500 rpm

SAT514G

AT-54

TROUBLE DIAGNOSIS

2006 Pathfinder

7.

Move the selector lever to the “N” position.

8.

Cool down the ATF.

CAUTION:

Run the engine at idle for at least one minute.

9.

Repeat steps 5 through 8 with selector lever in “3”, “2”, “1” and “R” positions.

Judgement of Stall Test

O: Stall speed within standard value position
H: Stall speed higher than standard value
L: Stall speed lower than standard value

Stall test standard value position

LINE PRESSURE TEST
Line Pressure Test Port

Line Pressure Test Procedure

1.

Inspect the amount of engine oil and replenish if necessary.

2.

Drive the car for about 10 minutes to warm it up so that the ATF reaches in range of 50 to 80

°

C (122 to

176

°

F), then inspect the amount of ATF and replenish if necessary.

NOTE:
The automatic fluid temperature rises in range of 50 to 80

°

C (122 to 176

°

F) during 10 minutes of

driving.

Selector lever position

Expected problem location

D, 3, 2, 1

R

Stall rotation 

H

O

●

Forward brake

●

Forward one-way clutch

●

1st one-way clutch

●

3rd one-way clutch

O

H

●

Reverse brake 

L

L

●

Engine and torque converter one-way clutch

H

H

●

Line pressure low

Does not shift-up D position 1 

→

 2

Slipping in 2nd, 3rd, 4th gears

Direct clutch slippage

Does not shift-up D position 2 

→

 3

Slipping in 3rd, 4th, 5th gears

High and low reverse clutch slippage

Does not shift-up D position 3 

→

 4

Slipping in 4th, 5th gears

Input clutch slippage

Does not shift-up D position 4 

→

 5

Slipping in 5th gear

Front brake slippage

SCIA2187E