Nissan Pathfinder. Manual - part 1155

DIAGNOSIS AND REPAIR WORK FLOW

TM-79

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Use 

TM-180, "Symptom Table"

 from the symptom inspection result in step 4. Then identify where to start per-

forming the diagnosis based on possible causes and symptoms.

>> GO TO 8.

7.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the detected malfunctioning parts.

Reconnect parts or connector after repairing or replacing, and then erase DTC if necessary.

>> GO TO 8.

8.

FINAL CHECK

Perform “DTC CONFIRMATION PROCEDURE” again to make sure that the repair is correctly performed.

Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,

referring to the symptom inspection result in step 3 or 4.
Is DTC or malfunction symptom reproduced?

YES-1 (DTC is reproduced.)>>GO TO 5.

YES-2 (Malfunction is reproduced.)>>GO TO 6.

NO

>> Before delivering the vehicle to the customer, make sure that DTC is erased.

Diagnostic Work Sheet

INFOID:0000000009177529

DESCRIPTION

There are many operating conditions that may cause a malfunction

of the transmission parts. By understanding those conditions prop-

erly, a quick and exact diagnosis can be achieved.

In general, perception of a problem varies depending on individuals.

Ask the customer about his/her concerns carefully. It is important to

understand the phenomenon or status. To systemize all the informa-

tion for the diagnosis, prepare the question sheet referring to the

question points.

In some cases, multiple conditions that appear simultaneously may

cause a DTC to be detected.

Worksheet Sample

SEF907L

Question sheet

Customer's 
name

MR/MS

Registration 
number

Initial year 
registration

Year

Month

day

Vehicle type

Chassis No.

Storage date

Year

Month

day

Engine

Mileage

km/mile

Symptom

†

 Vehicle does not start. († R position  † D position  † L position)

†

 Upshifting does not occur. 

†

 Downshifting does not occur. 

†

 Lock-up malfunction

†

 Shift point is too high. 

†

 Shift point is too low.

†

 Shift shock († N

⇒D † Lock-up  † R, D, and L position)

†

 Slip († N

⇒D † Lock-up  † R, D, and L position)

†

Noise

†

 Vibration

When selector lever position is shifted, shift pattern does not change.

†

 Other

 (

) 

First occurrence

†

 Recently (as from month

 of year

)

Frequency of occurrence

†

 Always 

†

 Under certain conditions 

†

 Sometimes (

 time(s)/day)

TM-80

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DIAGNOSIS AND REPAIR WORK FLOW

Climate con-
ditions

Irrelevant

Weather

†

 Clear

†

 Cloud

†

 Rain

†

 Snow

†

 Others 

)

Temperature

†

 Hot

†

 Warm

†

 Cool

†

 Cold

†

 Temperature (Approx.

°C/°F)

Relative humidity

†

 High

†

 Moderate

†

 Low

Transaxle condition 

†

 In cold-start 

†

 During warm-up (approx. 

°C/°F)

†

 After warm-up 

†

Engine speed: 

rpm

Road conditions

†

 Urban area

†

 Suburb area

†

 Highway 

†

 Mountainous road (uphill or downhill) 

Operating condition, etc.

Irrelevant
†

 When engine starts

†

 During idling

†

 During driving

†

 During acceleration

†

 At constant speed driving

†

 During deceleration

†

 During cornering (RH curve or LH curve)

Other conditions

Question sheet

Customer's 
name

MR/MS

Registration 
number

Initial year 
registration

Year

Month

day

Vehicle type

Chassis No.

Storage date

Year

Month

day

Engine

Mileage

km/mile

ADDITIONAL SERVICE WHEN REPLACING TCM

TM-81

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ADDITIONAL SERVICE WHEN REPLACING TCM

Description

INFOID:0000000009177530

Always perform the following items when the TCM is replaced.

SAVING AND WRITING OF TCM DATA

• TCM performs accurate control by retrieving data (inherent characteristic value) of each solenoid. For this

reason, it is necessary to save data of current TCM in CONSULT before replacing the TCM. After this, the

saved data must be written in new TCM.

Work Procedure

INFOID:0000000009177531

CAUTION:

When replacing TCM together with transaxle assembly, perform “ADDITIONAL SERVICE WHEN

REPLACING TRANSAXLE ASSEMBLY”. Refer to 

TM-82, "Work Procedure"

.

1.

SAVE THE TCM DATA

NOTE:

Save necessary data stored in TCM in CONSULT according to the following instructions:

With CONSULT

1. Turn ignition switch OFF and wait for 10 seconds.

2. Turn ignition switch ON.

3. Select “Work Support” in “TRANSMISSION”.

4. Select “READ IP CHARA - REPLACEMENT TCM”.

5. Import data according to the instructions on the CONSULT screen.

>> GO TO 2.

2.

REPLACE THE TCM

1. Turn ignition switch OFF and wait for 10 seconds.

2. Replace the TCM. Refer to 

TM-195, "Removal and Installation"

.

>> GO TO 3.

3.

WRITE THE TCM DATA

NOTE:

Write data saved in CONSULT into a new TCM according to the following instructions:

With CONSULT

1. Turn ignition switch OFF and wait for 10 seconds.

2. Turn ignition switch ON.

3. Select “Work Support” in “TRANSMISSION”.

4. Select “WRITE IP CHARA - REPLACEMENT TCM”.

5. Write data saved in CONSULT in TCM according to the instructions on the CONSULT screen.

>> WORK END

TM-82

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ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY

ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY

Description

INFOID:0000000009177532

Perform the following work after the transaxle assembly is replaced.

ERASING AND WRITING TCM DATA

• TCM performs accurate control by retrieving data (inherent characteristic value) of each solenoid. For this

reason, after replacing transaxle assembly, it is necessary to erase data stored in TCM and write new data.

ERASING OF CVT FLUID DEGRADATION LEVEL DATA 

• TCM records the degradation level of the CVT fluid calculated from the vehicle driving status. Therefore, if

the transaxle assembly is replaced, it is necessary to erase the CVT fluid degradation level data recorded by

TCM. 

Work Procedure

INFOID:0000000009177533

1.

CHECK THE SERIAL NUMBER (PART 1)

Write down the serial number of new transaxle assembly.

>> GO TO 2.

2.

CHECK THE SERIAL NUMBER (PART 2)

With CONSULT

1. Turn ignition switch ON.

2. Insert the attached CD into CONSULT.

3. Select “Work Support” in “TRANSMISSION”.

4. Select “WRITE IP CHARA - REPLACEMENT AT/CVT”.

5. Check that the serial number displayed on CONSULT screen and those written in the memo agree.

CAUTION:

Never perform writing procedure.

6. Go back to MENU of “Work Support”.

>> GO TO 3.

3.

INITIALIZE TCM

With CONSULT

1. Set parking brake.

2. Select “ERASE MEMORY DATA”.

3. Touch “Start” according to the instructions on the CONSULT screen.
Is “COMPLETED” displayed?

JSDIA3768GB