Nissan Pathfinder (2006 year). Instruction - part 28

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-215

D

E

F

G

H

I

J

K

L

M

A

B

AT

2006 Pathfinder

A/T Does Not Shift: 3rd gear 

→

 2nd gear

ECS00ELH

SYMPTOM:

When shifted from 3

3

  to 2

2

  position, does not downshift from 3rd to 2nd gears.

DIAGNOSTIC PROCEDURE

1. 

CHECK SELF-DIAGNOSIS RESULTS

Perform self-diagnosis. Refer to 

AT-90, "SELF-DIAGNOSTIC RESULT MODE"

 .

Is any malfunction detected by self-diagnostic results?

YES

>> Check the malfunctioning system. Refer to 

AT-90, "SELF-DIAGNOSTIC RESULT MODE"

 .

NO

>> GO TO 2.

2. 

CHECK A/T FLUID LEVEL

Check the A/T fluid level. Refer to 

AT-13, "Checking the Automatic Transmission Fluid (ATF)"

 .

OK or NG

OK

>> GO TO 3.

NG

>> Refill ATF.

3. 

CHECK CONTROL CABLE

Check the control cable.

●

Refer to 

AT-222, "Checking of A/T Position"

 .

OK or NG

OK

>> GO TO 4.

NG

>> Adjust control cable. Refer to 

AT-222, "Adjustment of A/T Position"

 .

4. 

CHECK A/T FLUID CONDITION

1.

Remove oil pan. Refer to 

AT-233, "Control Valve With TCM and A/T Fluid Temperature Sensor 2"

 .

2.

Check A/T fluid condition. Refer to 

AT-53, "Fluid Condition Check"

 .

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 8.

5. 

DETECT MALFUNCTIONING ITEM

●

Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to 

AT-64,

"Symptom Chart"

  (Symptom No.16).

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace damaged parts.

6. 

CHECK SYMPTOM

Check again. Refer to 

AT-61, "Cruise Test - Part 3"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 7.

AT-216

TROUBLE DIAGNOSIS FOR SYMPTOMS

2006 Pathfinder

7. 

PERFORM TCM INSPECTION

1.

Perform TCM input/output signals inspection. Refer to 

AT-86, "TCM Input/Output Signal Reference Val-

ues"

 .

2.

If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.

8. 

DETECT MALFUNCTIONING ITEM

●

Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to 

AT-64,

"Symptom Chart"

  (Symptom No.16).

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-217

D

E

F

G

H

I

J

K

L

M

A

B

AT

2006 Pathfinder

A/T Does Not Shift: 2nd gear 

→

 1st gear

ECS00ELI

SYMPTOM:

When shifted from 2

2

  to 1

1

  position, does not downshift from 2nd to 1st gears.

DIAGNOSTIC PROCEDURE

1. 

CHECK SELF-DIAGNOSIS RESULTS

Perform self-diagnosis. Refer to 

AT-90, "SELF-DIAGNOSTIC RESULT MODE"

 .

Is any malfunction detected by self-diagnostic results?

YES

>> Check the malfunctioning system. Refer to 

AT-90, "SELF-DIAGNOSTIC RESULT MODE"

 .

NO

>> GO TO 2.

2. 

CHECK 1ST POSITION SWITCH CIRCUIT

 With CONSULT-II

1.

Turn ignition switch “ON”.

2.

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

3.

Read out “1 POSITION SW” switch moving selector lever to
each position.

 Without CONSULT-II

1.

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

2.

Check voltage between A/T device harness connector terminal and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3. 

CHECK A/T FLUID LEVEL

Check the A/T fluid level. Refer to 

AT-13, "Checking the Automatic Transmission Fluid (ATF)"

 .

OK or NG

OK

>> GO TO 4.

NG

>> Refill ATF.

Monitor item

Condition

Display value

1 POSITION SW

When setting the selector 
lever to “1” position.

ON

When setting selector 
lever to other positions.

OFF

LCIA0339E

Item

Connector No.

Terminal No.

Condition

Data

(Approx.)

1st position 

switch

M156

9 - Ground

When setting 
the selector 
lever to “1” 
position.

0V

When setting 
selector lever 
to other posi-
tions.

Battery volt-

age 

AT-218

TROUBLE DIAGNOSIS FOR SYMPTOMS

2006 Pathfinder

4. 

CHECK CONTROL CABLE

Check the control cable.

●

Refer to 

AT-222, "Checking of A/T Position"

 .

OK or NG

OK

>> GO TO 5.

NG

>> Adjust control cable. Refer to 

AT-222, "Adjustment of A/T Position"

 .

5. 

CHECK A/T FLUID CONDITION

1.

Remove oil pan. Refer to 

AT-233, "Control Valve With TCM and A/T Fluid Temperature Sensor 2"

 .

2.

Check A/T fluid condition. Refer to 

AT-53, "Fluid Condition Check"

 .

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 9.

6. 

DETECT MALFUNCTIONING ITEM

●

Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to 

AT-64,

"Symptom Chart"

  (Symptom No.17).

OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace damaged parts.

7. 

CHECK SYMPTOM

Check again. Refer to 

AT-61, "Cruise Test - Part 3"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 8.

8. 

PERFORM TCM INSPECTION

1.

Perform TCM input/output signals inspection. Refer to 

AT-86, "TCM Input/Output Signal Reference Val-

ues"

 .

2.

If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.

9. 

DETECT MALFUNCTIONING ITEM

●

Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to 

AT-64,

"Symptom Chart"

  (Symptom No.17).

OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-219

D

E

F

G

H

I

J

K

L

M

A

B

AT

2006 Pathfinder

Vehicle Does Not Decelerate By Engine Brake

ECS00ELJ

SYMPTOM:

No engine brake is applied when the gear is shifted from the 2

2

  to 1

1

 .

DIAGNOSTIC PROCEDURE

1. 

CHECK SELF-DIAGNOSIS RESULTS

Perform self-diagnosis. 

Is any malfunction detected by self-diagnostic results?

YES

>> Check the malfunctioning system. Refer to 

AT-90, "SELF-DIAGNOSTIC RESULT MODE"

 .

NO

>> GO TO 2.

2. 

CHECK 1ST POSITION SWITCH CIRCUIT

 With CONSULT-II

1.

Turn ignition switch “ON”.

2.

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

3.

Read out “1 POSITION SW” moving switch selector lever to
each position.

 Without CONSULT-II

1.

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

2.

Check voltage between A/T device harness connector terminal and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3. 

CHECK A/T FLUID LEVEL

Check the A/T fluid level. Refer to 

AT-13, "Checking the Automatic Transmission Fluid (ATF)"

 .

OK or NG

OK

>> GO TO 4.

NG

>> Refill ATF.

Monitor item

Condition

Display value

1 POSITION SW

When setting the selector 
lever to “1” position.

ON

When setting selector 
lever to other positions.

OFF

LCIA0339E

Item

Connector No.

Terminal No.

Condition

Data

(Approx.)

1st position 

switch

M156

9 - Ground

When setting 
the selector 
lever to “1” 
position.

0V

When setting 
selector lever 
to other posi-
tions.

Battery volt-

age 

AT-220

TROUBLE DIAGNOSIS FOR SYMPTOMS

2006 Pathfinder

4. 

CHECK CONTROL CABLE

Check the control cable.

●

Refer to 

AT-222, "Checking of A/T Position"

 .

OK or NG

OK

>> GO TO 5.

NG

>> Adjust control cable. Refer to 

AT-222, "Adjustment of A/T Position"

 .

5. 

CHECK A/T FLUID CONDITION

1.

Remove oil pan. Refer to 

AT-233, "Control Valve With TCM and A/T Fluid Temperature Sensor 2"

 .

2.

Check A/T fluid condition. Refer to 

AT-53, "Fluid Condition Check"

 .

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 9.

6. 

DETECT MALFUNCTIONING ITEM

●

Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to 

AT-64,

"Symptom Chart"

  (Symptom No.53).

OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace damaged parts.

7. 

CHECK SYMPTOM

Check again. Refer to 

AT-61, "Cruise Test - Part 3"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 8.

8. 

PERFORM TCM INSPECTION

1.

Perform TCM input/output signals inspection. Refer to 

AT-86, "TCM Input/Output Signal Reference Val-

ues"

 .

2.

If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.

9. 

DETECT MALFUNCTIONING ITEM

●

Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to 

AT-64,

"Symptom Chart"

  (Symptom No.53).

OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace damaged parts.

SHIFT CONTROL SYSTEM

AT-221

D

E

F

G

H

I

J

K

L

M

A

B

AT

2006 Pathfinder

SHIFT CONTROL SYSTEM

PFP:34901

Control Device Removal and Installation

ECS00ELK

1.

Selector button

2.

Selector spring

3.

Selector lever

4.

Overdrive control switch

5.

Position indicator

6.

Position lamp

7.

A/T device harness connector

8.

A/T selector control cable

9.

Lock plate

10.

A/T key interlock cable

11.

A/T control device assembly

WCIA0503E

AT-222

SHIFT CONTROL SYSTEM

2006 Pathfinder

REMOVAL

1.

Remove the A/T finisher. Refer to 

IP-10, "INSTRUMENT PANEL ASSEMBLY"

 .

2.

Disconnect the following from the A/T control device assembly.

●

A/T selector control cable

●

A/T key interlock cable

●

A/T device connector

3.

Remove the A/T control device assembly.

INSTALLATION

Installation is in reverse order of removal.

Adjustment of A/T Position

ECS00ELL

1.

Loosen nut of control cable.

2.

Place the instruction lever and selector lever in “P” position.

3.

Push the control cable in the direction shown with a force of 9.8
N (1kg, 2.2 lb), release it. This is in the natural state, tighten con-
trol cable nut to specifications.

Checking of A/T Position

ECS00ELM

With the selector lever in the “P” position, turn the ignition switch to the ON position with the engine OFF.
Confirm that the following conditions apply.

●

The selector lever can be shifted from the “P” position when the brake pedal is depressed.

●

The selector lever stops at each position with the feel of engagement when it is moved through all the
positions.

●

There is no excessive effort, sticking, noise or rattle.

●

The actual position of the selector lever matches the position shown by the shift position indicator and the
A/T body.

●

The back-up lamps illuminate only when the selector lever is placed in the “R” position.

●

The back-up lamps do not illuminate when the selector lever is pushed against the “R” position when in
the “P” or “N” position. 

●

The engine can only be started with the selector lever in the “P” and “N” positions.

●

The A/T is locked completely when in the “P” position.

Control cable nut

: 14.5 N·m (1.5 kg-m, 11 ft-lb)

SCIA6532E