Nissan Quest E52. Manual - part 1208

TM-62

< BASIC INSPECTION >

[CVT: RE0F09B]

ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY

ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY

Description

INFOID:0000000009650112

When replacing the transaxle assembly, perform the following work.

ERASING, LOADING AND STORING OF CALIBRATION DATA

• The TCM acquires calibration data (individual characteristic value) of each solenoid that is stored in the

ROM assembly (in the control valve). This enables the TCM to perform accurate control. For this reason,
after the transaxle assembly is replaced, it is necessary to erase the calibration data previously stored in
TCM, to load new calibration data, and to stored them.

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. 

Procedure

INFOID:0000000009650113

CAUTION:

Immediately after TCM is replaced or after transaxle assembly is replaced (after TCM initialization is
complete), self-diagnosis result of “P1701”, “P1709” may be displayed. In this case, erase self-diagno-
sis result using CONSULT. After erasing self-diagnosis result, perform DTC P1701, P1709 reproduction
procedure and check that malfunction is not detected. Refer to 

TM-114, "DTC Logic"

 (P1701), 

TM-118,

"DTC Logic"

 (P1709).

1.

PREPARATION BEFORE WORK

With CONSULT

1.

Start the engine.

CAUTION:

Never drive the vehicle.

2.

Select “Data Monitor” in “TRANSMISSION”.

3.

Select “ATFTEMP COUNT”.

 Is “ATFTEMP COUNT” 47 [equivalent to 20

°

C (68

°

F)] or more?

YES

>> GO TO 2.

NO

>> 1.

Warm up the transaxle assembly until “ATFTEMP COUNT” reaches “47” [equivalent to 20

°

C

(68

°

F)] or more.

2.

GO TO 2.

2.

PERFORM TCM INITIALIZATION

With CONSULT

1.

Turn ignition switch OFF.

2.

Turn ignition switch ON.

CAUTION:

Never start the engine.

3.

Select “Self Diagnostic Results” in “TRANSMISSION”.

4.

Shift selector lever to “R” position.

5.

Depress slightly the accelerator pedal (Pedal angle: 2.0/8) while depressing the brake pedal.

6.

Select “Erase” with step 5.

7.

Release brake pedal and accelerator pedal.

8.

Select “CALIB DATA” in “TRANSMISSION”.

9.

Check that “CALIB DATA” value is as shown as in the following table.

Item name

Display value

UNIT CLB ID 1

00

UNIT CLB ID 2

00

UNIT CLB ID 3

00

UNIT CLB ID 4

00

ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY

TM-63

< BASIC INSPECTION >

[CVT: RE0F09B]

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Is “CALIB DATA” value it?

YES

>> GO TO 3.

NO

>> GO TO 1.

3.

LOAD CALIBRATION DATA

1.

Shift selector lever to “P” position.

2.

Check that “P” is displayed on shift position indicator on combination meter.
NOTE:
It indicates approximately 1 – 2 seconds after shifting the selector lever to “P” position.

Does shift position indicator display “P”?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

DETECT MALFUNCTIONING ITEM

Check the following items:

• Harness between the TCM and the ROM assembly inside the transaxle assembly is open or shorted.
• Disconnected, loose, bent, collapsed, or otherwise abnormal connector housing terminals
• Power supply and ground of TCM. (Refer to 

TM-114, "Diagnosis Procedure"

.)

Is the inspection result normal?

YES

>> GO TO 1.

NO

>> Repair or replace the malfunctioning parts.

5.

STORE CALIBRATION DATA

1.

Turn ignition switch OFF and wait for 5 seconds.

2.

Turn ignition switch ON.

Does the shift position indicator display “P” at the same time when turning ON the ignition switch?

YES

>> GO TO 6.

NO

>> Check harness between battery and TCM harness connector terminal. Refer to 

TM-114, "Diagno-

sis Procedure"

.

6.

ERASE CVT FLUID DEGRADATION LEVEL DATA

With CONSULT

1.

Select “WORK SUPPORT” in “TRANSMISSION”.

2.

Select “CONFORM CVTF DETERIORTN”.

3.

Touch “Clear”.

>> WORK END

UNIT CLB ID 5

00

UNIT CLB ID 6

00

Item name

Display value

TM-64

< BASIC INSPECTION >

[CVT: RE0F09B]

STALL TEST

STALL TEST

Work Procedure

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1.

Check the amount of engine oil. Replenish if necessary. Refer to 

LU-8, "Inspection"

.

2.

Check for leak of the CVT fluid. Refer to 

TM-149, "Inspection"

.

3.

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

°

C (122 to

176

°

F).

4.

Be sure to apply the parking brake and block the tires.

5.

Start the engine, depress the brake pedal and shift the selector lever to the “D” position.

6.

While depressing the brake pedal, depress the accelerator pedal gradually.

7.

Read the stall speed quickly. Then, release your foot from the accelerator pedal quickly.

CAUTION:

Never depress the accelerator pedal for 5 seconds or more during the test.

8.

Shift the selector lever to the “N” position.

9.

Cool the CVT fluid.

CAUTION:

Run the engine with the idle speed for at least 1 minute.

10. Shift the selector lever to the “R” position and perform Step 6 to Step 9 again.

RESULT OF INSPECTION

• O: Stall speed within standard value position.

• H: Stall speed is higher than standard value.

• L: Stall speed is lower than standard value.

Stall speed

: 

TM-179, "Stall Speed"

Stall speed

“D” position

“R” position

Possible cause

H

O

• Forward clutch

O

H

• Reverse brake

L

L

• Engine and torque converter one-way clutch
• Accelerator pedal position sensor

H

H

• Line pressure low
• Primary pulley
• Secondary pulley
• Steel belt

LINE PRESSURE TEST

TM-65

< BASIC INSPECTION >

[CVT: RE0F09B]

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LINE PRESSURE TEST

Work Procedure

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1.

Check the amount of engine oil. Replenish if necessary. Refer to 

LU-8, "Inspection"

.

2.

Check for leak of the CVT fluid. Refer to 

TM-149, "Inspection"

.

3.

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

°

C (122 to

176

°

F).

4.

After warming up transaxle assembly, remove oil pressure
detection plug (A) and install oil pressure gauge [special service
tool: — (OTC3492)].
NOTE:
When using oil pressure gauge, be sure to use O-ring attached
to oil pressure detection plug.

5.

Be sure to apply the parking brake and block the tires.

6.

Start the engine.

7.

Measure the line pressure at both idle and the stall speed.

CAUTION:

Keep brake pedal pressed all the way down during mea-
surement.

8.

Install O-ring to fluid pressure detection plug after the measurements are complete.

CAUTION:

• Never reuse O-ring.
• Apply CVT fluid to O-ring.

9.

Install oil pressure detection plug and tighten to the specified torque.

RESULT OF INSPECTION

Line pressure

: 

TM-179, "Line Pressure"

: 7.5 N·m (0.77 kg-m, 66 in-lb)

JPDIA0974ZZ

Condition

Possible cause

Idle speed

Low for all positions
(“P”, “R”, “N”, “D”, “L”)

Possible causes include malfunctions in the pressure supply system and low oil pump 
output.
For example
• Oil  pump  wear
• Pressure regulator valve or plug sticking or spring fatigue
• Oil strainer 

⇒

 oil pump 

⇒

 pressure regulator valve passage oil leak

• Engine idle speed too low

Only low for a specific posi-
tion

Possible causes include an oil pressure leak in a passage or device related to the position 
after the pressure is distributed by the manual valve.

High

Possible causes include a sensor malfunction or malfunction in the line pressure adjust-
ment function.
For example
• Accelerator pedal position signal malfunction
• CVT fluid temperature sensor malfunction
• Line pressure solenoid malfunction (sticking in OFF state, filter clog, cut line)
• Pressure regulator valve or plug sticking